1894 11 32.90  24.30  28.60 
1894 12 33.40  24.60  29.00 
1895 01 32.40  24.40  28.40 
1895 02 32.80  24.20  28.50 
1895 03 32.40  24.80  28.60 
1895 04 33.80  25.10  29.45 
1895 05 33.70  24.60  29.15 
1895 06 33.50  24.50  29.00 
1895 07 33.90  24.50  29.20 
1895 08 34.30  24.80  29.55 
1895 10 34.00  24.40  29.20 
1895 11 33.09  24.20  28.65 
1895 12 32.30  23.90  28.09 
1896 01 33.00  24.20  28.60 
1896 02 32.59  24.70  28.65 
1896 03 32.30  24.70  28.50 
1896 04 33.59  24.50  29.05 
1896 05 33.59  24.80  29.20 
1896 06 31.40  24.40  27.90 
1896 07 30.90  23.90  27.40 
1896 08 30.90  23.90  27.40 
1896 09 31.40  23.80  27.59 
1896 10 33.09  24.10  28.59 
1896 11 32.59  24.30  28.45 
1896 12 31.60  24.70  28.15 
1897 01 32.40  24.60  28.50 
1897 02 31.70  24.80  28.25 
1897 03 31.30  24.50  27.90 
1897 04 32.00  24.80  28.40 
1897 05 32.50  24.10  28.30 
1897 07 32.90 -99.99 -99.99 
1897 08 33.59 -99.99 -99.99 
1897 09 34.00 -99.99 -99.99 
1897 10 33.80 -99.99 -99.99 
1897 11 33.50 -99.99 -99.99 
1897 12 33.40 -99.99 -99.99 
1898 01 33.20 -99.99 -99.99 
1898 03 33.00 -99.99 -99.99 
1898 04 32.80 -99.99 -99.99 
1898 05 33.40 -99.99 -99.99 
1898 06 33.70 -99.99 -99.99 
1898 07 33.09 -99.99 -99.99 
1898 08 33.09 -99.99 -99.99 
1898 09 34.20 -99.99 -99.99 
1898 10 33.80 -99.99 -99.99 
1898 12 32.59 -99.99 -99.99 
1899 01 32.90 -99.99 -99.99 
1899 02 32.90 -99.99 -99.99 
1899 03 33.09 -99.99 -99.99 
1899 04 34.00 -99.99 -99.99 
1899 05 34.20 -99.99 -99.99 
1899 06 33.09 -99.99 -99.99 
1899 07 33.50 -99.99 -99.99 
1899 08 32.80 -99.99 -99.99 
1899 09 34.00 -99.99 -99.99 
1899 10 33.80 -99.99 -99.99 
1899 11 32.09 -99.99 -99.99 
1899 12 32.50 -99.99 -99.99 
1900 01 33.70 -99.99 -99.99 
1900 02 30.50 -99.99 -99.99 
1900 03 33.20 -99.99 -99.99 
1900 04 32.20 -99.99 -99.99 
1900 05 32.20 -99.99 -99.99 
1900 06 32.20 -99.99 -99.99 
1900 07 33.50 -99.99 -99.99 
1900 08 33.70 -99.99 -99.99 
1900 09 34.50 -99.99 -99.99 
1900 10 34.80 -99.99 -99.99 
1900 11 33.80 -99.99 -99.99 
1900 12 32.70 -99.99 -99.99 
1901 08 33.20  25.00  29.10 
1901 09 34.20  25.00  29.60 
1901 10 34.30  24.80  29.55 
1901 11 34.20  24.20  29.20 
1901 12 34.00  24.80  29.40 
1902 01 32.59  25.30  28.95 
1902 02 32.30  25.50  28.90 
1902 05 32.59  24.60  28.59 
1902 06 32.00  24.50  28.25 
1902 07 32.20  24.90  28.55 
1902 08 33.09  25.20  29.15 
1902 09 32.50  25.10  28.80 
1902 10 33.30  25.00  29.15 
1902 11 31.60  25.40  28.50 
1902 12 32.20  25.00  28.60 
1903 01 32.00  24.80  28.40 
1903 02 31.10  25.40  28.25 
1903 03 32.90  24.90  28.90 
1903 04 32.59  24.90  28.75 
1903 05 33.00  24.80  28.90 
1903 06 33.00  24.50  28.75 
1903 07 32.40  24.50  28.45 
1903 08 32.80  23.50  28.15 
1903 09 32.70  23.60  28.15 
1903 10 32.90  23.00  27.95 
1903 11 32.40  23.70  28.05 
1903 12 32.70  24.70  28.70 
1904 01 31.80  25.80  28.80 
1904 02 31.90  24.50  28.20 
1904 03 32.80  24.40  28.59 
1904 04 33.20  24.00  28.60 
1904 05 32.90  25.00  28.95 
1904 06 32.59  24.40  28.50 
1904 07 32.50  24.00  28.25 
1904 08 32.20  24.10  28.15 
1904 09 33.30  24.20  28.75 
1904 10 33.50  24.60  29.05 
1904 11 32.90  25.20  29.05 
1904 12 32.59  25.00  28.80 
1905 01 31.40  24.80  28.09 
1905 02 31.40  25.30  28.34 
1905 03 33.00  25.30  29.15 
1905 04 31.90  25.00  28.45 
1905 06 31.70  24.50  28.10 
1905 07 31.10  24.60  27.85 
1905 08 32.20  24.70  28.45 
1905 09 32.09  24.30  28.20 
1905 10 31.90  24.90  28.40 
1905 11 32.40  25.70  29.05 
1905 12 31.70  25.10  28.40 
1906 01 31.50  25.20  28.35 
1906 02 31.70  25.20  28.45 
1906 03 31.30  25.70  28.50 
1906 04 31.70  25.00  28.35 
1906 05 32.70  24.80  28.75 
1906 06 31.80  24.60  28.20 
1906 07 32.40  24.70  28.55 
1906 08 32.59  24.30  28.45 
1906 09 33.20  24.40  28.80 
1906 10 33.09  26.70  29.90 
1923 01 31.70  23.80  27.75 
1923 02 31.30  23.70  27.50 
1923 03 31.20  24.20  27.70 
1923 04 31.30  24.40  27.84 
1923 05 32.09  24.30  28.20 
1923 06 31.30  24.20  27.75 
1923 07 31.00  23.20  27.10 
1923 08 30.90  23.10  27.00 
1923 09 31.90  23.70  27.80 
1923 10 32.00  23.70  27.85 
1923 11 30.50  23.60  27.05 
1923 12 30.70  23.80  27.25 
1924 01 30.40  23.30  26.84 
1924 02 31.50  24.20  27.85 
1924 03 30.90  24.30  27.59 
1924 04 31.90  24.30  28.09 
1924 05 31.70  23.60  27.65 
1924 06 31.20  22.70  26.95 
1924 07 31.40  24.00  27.70 
1924 08 31.60  23.90  27.75 
1924 09 31.90  23.40  27.65 
1924 10 31.50  22.90  27.20 
1924 11 31.10  24.50  27.80 
1924 12 31.90  22.90  27.40 
1925 01 32.00  23.70  27.85 
1925 02 31.10  24.60  27.85 
1925 03 31.10  24.20  27.65 
1925 04 31.80  24.30  28.05 
1925 05 32.09  24.50  28.30 
1925 06 31.60  24.10  27.85 
1925 07 30.80  23.90  27.34 
1925 08 31.50 -99.99 -99.99 
1925 09 31.80 -99.99 -99.99 
1925 10 31.60 -99.99 -99.99 
1925 11 32.00 -99.99 -99.99 
1925 12 30.70  23.60  27.15 
1926 01 29.90  23.80  26.84 
1926 02 31.00  23.50  27.25 
1926 03 30.60  23.60  27.10 
1926 04 30.30  22.40  26.34 
1926 05 31.20  22.30  26.75 
1926 06 30.90  22.90  26.90 
1926 07 31.60  23.20  27.40 
1926 08 31.70  23.60  27.65 
1926 09 31.90  24.20  28.05 
1926 10 32.00  22.60  27.30 
1926 11 31.60  23.60  27.60 
1926 12 31.90  22.60  27.25 
1927 01 31.50  23.40  27.45 
1927 02 31.20  23.80  27.50 
1927 03 31.50  24.10  27.80 
1927 04 32.00  23.80  27.90 
1927 05 31.90  24.20  28.05 
1927 06 31.70  24.10  27.90 
1927 07 31.20  24.20  27.70 
1927 08 31.30  23.60  27.45 
1927 09 32.20  23.20  27.70 
1927 10 32.30  21.90  27.09 
1927 11 32.30  23.10  27.70 
1927 12 31.00  24.00  27.50 
1928 01 30.00  23.60  26.80 
1928 02 31.20  24.20  27.70 
1928 03 31.10  24.10  27.60 
1928 04 31.30  24.10  27.70 
1928 05 31.70  23.10  27.40 
1928 06 32.09  23.20  27.65 
1928 07 31.90  24.10  28.00 
1928 08 32.59  23.20  27.90 
1928 09 31.80  22.90  27.34 
1928 10 32.59  23.50  28.05 
1928 11 32.70  23.60  28.15 
1928 12 31.30  23.40  27.34 
1929 01 31.40  24.10  27.75 
1929 02 31.10  23.30  27.20 
1929 03 31.40  24.20  27.80 
1929 04 32.09  23.70  27.90 
1929 05 31.70  23.80  27.75 
1929 06 31.80  23.90  27.84 
1929 07 31.30  23.20  27.25 
1929 08 31.10  23.20  27.15 
1929 09 32.20  23.70  27.95 
1929 10 32.09  23.90  28.00 
1929 11 31.30  23.40  27.34 
1929 12 30.70  23.70  27.20 
1930 01 30.80  23.60  27.20 
1930 02 30.20  24.10  27.15 
1930 03 30.90  24.10  27.50 
1930 04 31.70  23.40  27.55 
1930 05 32.09  23.90  28.00 
1930 06 31.80  23.20  27.50 
1930 07 31.40  22.60  27.00 
1930 08 30.70  22.20  26.45 
1930 09 30.40  22.50  26.45 
1930 10 31.70  23.10  27.40 
1930 11 31.80  22.90  27.34 
1930 12 31.40  22.80  27.09 
1931 01 31.30  23.00  27.15 
1931 02 31.30  23.70  27.50 
1931 03 31.00  23.70  27.35 
1931 04 29.60  24.00  26.80 
1931 05 31.70  24.00  27.85 
1931 06 31.60  23.90  27.75 
1931 07 31.70  23.10  27.40 
1931 08 31.90  23.60  27.75 
1931 09 32.70  23.60  28.15 
1931 10 32.40  23.30  27.85 
1931 11 32.59  22.50  27.55 
1931 12 32.20  24.00  28.10 
1932 01 31.50  23.80  27.65 
1932 02 31.60  23.80  27.70 
1932 03 31.40  24.10  27.75 
1932 04 31.40  24.30  27.84 
1932 05 31.80  24.30  28.05 
1932 06 31.90  23.80  27.84 
1932 07 31.60  23.50  27.55 
1932 08 32.20  23.40  27.80 
1932 09 32.30  23.80  28.05 
1932 10 33.20  22.40  27.80 
1932 11 33.59  23.30  28.45 
1932 12 33.20  22.40  27.80 
1933 01 31.90  23.90  27.90 
1933 02 31.40  23.90  27.65 
1933 03 31.70  24.40  28.05 
1933 04 31.90  24.20  28.05 
1933 05 31.70  24.40  28.05 
1933 06 31.30  23.60  27.45 
1933 07 30.80  23.90  27.34 
1933 08 31.10  24.10  27.60 
1933 09 31.50  23.70  27.60 
1933 10 31.40  23.50  27.45 
1933 11 31.80  23.70  27.75 
1933 12 31.90  24.30  28.09 
1934 01 31.30  23.80  27.55 
1934 02 31.30  24.20  27.75 
1934 03 31.60  24.10  27.85 
1934 04 32.09  24.70  28.40 
1934 05 32.20  23.90  28.05 
1934 06 31.70  24.40  28.05 
1934 07 31.50  23.90  27.70 
1934 08 31.90  23.90  27.90 
1934 09 32.30  23.70  28.00 
1934 10 32.40  23.80  28.10 
1934 11 32.50  23.80  28.15 
1934 12 32.09  23.70  27.90 
1935 01 30.80  24.10  27.45 
1935 02 31.40  24.20  27.80 
1935 03 31.60  24.30  27.95 
1935 04 32.20  23.40  27.80 
1935 05 32.09  23.70  27.90 
1935 06 31.90  23.80  27.84 
1935 07 31.50  23.60  27.55 
1935 08 32.90  22.20  27.55 
1935 09 32.80  24.50  28.65 
1935 10 32.59  23.90  28.25 
1935 11 32.70  23.40  28.05 
1935 12 31.50  23.80  27.65 
1936 01 31.30  23.10  27.20 
1936 02 31.20  23.80  27.50 
1936 03 31.70  24.10  27.90 
1936 04 32.20  23.90  28.05 
1936 05 32.50  23.90  28.20 
1936 06 32.40  23.40  27.90 
1936 07 32.70  23.10  27.90 
1936 08 32.40  24.10  28.25 
1936 09 33.59  23.90  28.75 
1936 10 33.59  24.20  28.90 
1936 11 31.90  24.10  28.00 
1936 12 31.00  24.10  27.55 
1937 01 31.70  24.40  28.05 
1937 02 31.40  24.10  27.75 
1937 03 32.20  23.50  27.85 
1937 04 32.90  23.70  28.30 
1937 05 33.20  23.70  28.45 
1937 06 33.20  23.40  28.30 
1937 08 32.30  23.70  28.00 
1937 09 32.70  23.50  28.10 
1937 10 32.70  23.60  28.15 
1937 12 33.20  23.00  28.10 
1938 01 32.09  23.70  27.90 
1938 02 32.09  24.20  28.15 
1938 03 32.09  24.30  28.20 
1938 04 32.50  23.80  28.15 
1938 05 32.70  23.30  28.00 
1938 06 32.50  24.30  28.40 
1938 07 32.30  24.10  28.20 
1938 08 32.70  23.90  28.30 
1938 09 32.40  23.80  28.10 
1938 10 32.90  23.40  28.15 
1938 11 33.09  23.20  28.15 
1938 12 33.30  23.50  28.40 
1939 01 33.59  23.20  28.40 
1939 02 33.40  23.40  28.40 
1939 03 33.40  23.50  28.45 
1939 04 33.20  23.20  28.20 
1939 05 31.80  23.40  27.59 
1939 06 30.90  23.70  27.30 
1939 07 30.30  23.60  26.95 
1939 08 30.10  22.50  26.30 
1939 09 30.30  23.60  26.95 
1939 10 31.10  22.60  26.85 
1939 11 31.30  22.70  27.00 
1939 12 30.90  22.00  26.45 
1940 01 30.90  21.60  26.25 
1940 02 30.90  22.20  26.55 
1940 03 31.30  22.80  27.05 
1940 04 30.30  21.90  26.09 
1940 05 31.10  21.60  26.35 
1940 06 31.60  21.90  26.75 
1940 07 31.20  22.30  26.75 
1940 08 31.30  22.30  26.80 
1940 09 31.20  23.10  27.15 
1940 10 31.20  22.70  26.95 
1940 12 30.50  22.40  26.45 
1941 03 31.40  23.90  27.65 
1941 04 30.40  23.40  26.90 
1941 05 30.70  24.70  27.70 
1941 06 30.20  24.50  27.35 
1941 07 30.10  24.10  27.10 
1941 08 30.30  23.50  26.90 
1941 09 30.30  24.10  27.20 
1951 01 99.99 -99.99  27.90 
1951 02 99.99 -99.99  28.00 
1951 03 99.99 -99.99  27.50 
1951 04 99.99 -99.99  27.90 
1951 05 99.99 -99.99  27.10 
1951 06 99.99 -99.99  27.10 
1951 07 99.99 -99.99  26.90 
1951 08 99.99 -99.99  27.10 
1951 09 99.99 -99.99  27.90 
1951 10 99.99 -99.99  27.70 
1951 11 99.99 -99.99  28.40 
1951 12 99.99 -99.99  27.60 
1952 01 99.99 -99.99  28.00 
1952 02 99.99 -99.99  28.00 
1952 03 99.99 -99.99  27.40 
1952 04 99.99 -99.99  27.40 
1952 05 99.99 -99.99  27.90 
1952 06 99.99 -99.99  27.60 
1952 07 99.99 -99.99  27.60 
1952 08 99.99 -99.99  27.60 
1952 09 99.99 -99.99  27.90 
1952 10 99.99 -99.99  28.60 
1952 11 99.99 -99.99  28.30 
1952 12 99.99 -99.99  27.50 
1953 01 99.99 -99.99  27.10 
1953 02 99.99 -99.99  26.60 
1953 03 99.99 -99.99  27.40 
1953 05 99.99 -99.99  26.80 
1953 06 99.99 -99.99  27.40 
1953 07 99.99 -99.99  26.90 
1953 08 99.99 -99.99  26.80 
1953 09 99.99 -99.99  27.00 
1953 10 99.99 -99.99  27.30 
1953 11 99.99 -99.99  27.90 
1953 12 99.99 -99.99  27.00 
1954 01 99.99 -99.99  27.40 
1954 02 99.99 -99.99  27.60 
1954 03 99.99 -99.99  27.30 
1954 04 99.99 -99.99  28.00 
1954 05 99.99 -99.99  27.40 
1954 06 99.99 -99.99  27.50 
1954 07 99.99 -99.99  27.70 
1954 08 99.99 -99.99  27.20 
1954 09 99.99 -99.99  27.20 
1954 10 99.99 -99.99  27.20 
1954 11 99.99 -99.99  27.70 
1954 12 99.99 -99.99  28.30 
1955 01 99.99 -99.99  27.20 
1955 02 99.99 -99.99  27.50 
1955 03 99.99 -99.99  27.00 
1955 04 99.99 -99.99  27.10 
1955 05 99.99 -99.99  27.50 
1955 06 99.99 -99.99  27.70 
1955 07 99.99 -99.99  27.40 
1955 08 99.99 -99.99  27.40 
1955 09 99.99 -99.99  27.20 
1955 10 99.99 -99.99  26.90 
1955 11 99.99 -99.99  27.40 
1955 12 99.99 -99.99  27.30 
1956 01 99.99 -99.99  27.50 
1956 02 99.99 -99.99  26.90 
1956 03 99.99 -99.99  27.40 
1956 04 99.99 -99.99  27.40 
1956 05 99.99 -99.99  27.50 
1956 06 99.99 -99.99  27.50 
1956 07 99.99 -99.99  27.50 
1956 08 99.99 -99.99  27.90 
1956 09 99.99 -99.99  27.70 
1956 10 99.99 -99.99  28.00 
1956 11 99.99 -99.99  27.70 
1956 12 99.99 -99.99  28.00 
1957 01 99.99 -99.99  27.50 
1957 02 99.99 -99.99  27.70 
1957 03 99.99 -99.99  27.60 
1957 04 99.99 -99.99  27.50 
1957 05 99.99 -99.99  27.50 
1957 06 99.99 -99.99  27.50 
1957 07 99.99 -99.99  27.00 
1957 08 99.99 -99.99  27.40 
1957 09 99.99 -99.99  27.20 
1957 10 99.99 -99.99  27.30 
1957 11 99.99 -99.99  27.20 
1957 12 99.99 -99.99  27.70 
1958 01 99.99 -99.99  27.70 
1958 02 99.99 -99.99  27.30 
1958 03 99.99 -99.99  27.50 
1958 04 99.99 -99.99  27.70 
1958 05 99.99 -99.99  27.80 
1958 06 99.99 -99.99  27.50 
1958 07 99.99 -99.99  27.40 
1958 08 99.99 -99.99  28.10 
1958 09 99.99 -99.99  28.60 
1958 10 99.99 -99.99  28.80 
1958 11 99.99 -99.99  27.70 
1958 12 99.99 -99.99  27.50 
1959 01 99.99 -99.99  27.40 
1959 02 99.99 -99.99  27.30 
1959 03 99.99 -99.99  28.00 
1959 04 99.99 -99.99  27.80 
1959 05 99.99 -99.99  28.20 
1959 06 99.99 -99.99  27.80 
1959 07 99.99 -99.99  27.80 
1959 08 99.99 -99.99  28.10 
1959 09 99.99 -99.99  28.50 
1959 10 99.99 -99.99  28.40 
1959 11 99.99 -99.99  28.40 
1959 12 99.99 -99.99  27.40 
1960 01 99.99 -99.99  27.50 
1960 02 99.99 -99.99  27.50 
1960 03 99.99 -99.99  27.60 
1960 04 99.99 -99.99  27.30 
1960 05 99.99 -99.99  27.80 
1960 06 99.99 -99.99  28.10 
1960 07 99.99 -99.99  27.90 
1960 08 99.99 -99.99  27.90 
1960 09 99.99 -99.99  28.10 
1960 10 99.99 -99.99  28.30 
1960 11 99.99 -99.99  28.30 
1960 12 99.99 -99.99  27.70 
1961 01 99.99 -99.99  27.80 
1961 02 99.99 -99.99  28.10 
1961 03 99.99 -99.99  27.20 
1961 04 99.99 -99.99  27.20 
1961 05 99.99 -99.99  27.60 
1961 06 99.99 -99.99  27.40 
1961 07 99.99 -99.99  27.50 
1961 08 99.99 -99.99  27.30 
1961 09 99.99 -99.99  27.80 
1961 10 99.99 -99.99  28.00 
1961 11 99.99 -99.99  27.80 
1961 12 99.99 -99.99  27.90 
1962 01 99.99 -99.99  28.40 
1962 02 99.99 -99.99  28.10 
1962 03 99.99 -99.99  28.00 
1962 04 99.99 -99.99  27.70 
1962 05 99.99 -99.99  28.30 
1962 06 99.99 -99.99  27.70 
1962 07 99.99 -99.99  27.70 
1962 08 99.99 -99.99  27.80 
1962 09 99.99 -99.99  27.70 
1962 10 99.99 -99.99  28.60 
1962 11 99.99 -99.99  27.90 
1962 12 99.99 -99.99  28.40 
1963 01 99.99 -99.99  28.20 
1963 02 99.99 -99.99  28.20 
1963 03 99.99 -99.99  28.20 
1963 04 99.99 -99.99  27.90 
1963 05 99.99 -99.99  28.20 
1963 06 99.99 -99.99  27.80 
1963 07 99.99 -99.99  27.90 
1963 08 99.99 -99.99  27.90 
1963 09 99.99 -99.99  27.30 
1963 10 99.99 -99.99  27.40 
1963 11 99.99 -99.99  27.70 
1963 12 99.99 -99.99  26.80 
1964 01 99.99 -99.99  27.60 
1964 02 99.99 -99.99  27.30 
1964 03 99.99 -99.99  27.60 
1964 04 99.99 -99.99  27.70 
1964 05 99.99 -99.99  27.70 
1964 06 99.99 -99.99  27.60 
1964 07 99.99 -99.99  27.80 
1964 08 99.99 -99.99  27.50 
1964 09 99.99 -99.99  27.90 
1964 10 99.99 -99.99  27.70 
1964 11 99.99 -99.99  28.10 
1964 12 99.99 -99.99  27.30 
1965 01 99.99 -99.99  27.10 
1965 02 99.99 -99.99  26.80 
1965 03 99.99 -99.99  27.50 
1965 04 99.99 -99.99  26.90 
1965 05 99.99 -99.99  27.70 
1965 06 99.99 -99.99  27.10 
1965 07 99.99 -99.99  26.50 
1965 08 99.99 -99.99  26.80 
1965 09 99.99 -99.99  26.90 
1965 10 99.99 -99.99  26.90 
1965 11 99.99 -99.99  27.50 
1965 12 99.99 -99.99  27.40 
1966 01 99.99 -99.99  27.20 
1966 02 99.99 -99.99  27.50 
1966 03 99.99 -99.99  27.50 
1966 04 99.99 -99.99  27.50 
1966 05 99.99 -99.99  27.90 
1966 06 99.99 -99.99  28.10 
1966 07 99.99 -99.99  27.90 
1966 08 99.99 -99.99  28.30 
1966 09 99.99 -99.99  28.40 
1966 10 99.99 -99.99  28.50 
1966 11 99.99 -99.99  28.40 
1966 12 99.99 -99.99  28.30 
1967 01 99.99 -99.99  28.40 
1967 02 99.99 -99.99  28.00 
1967 03 99.99 -99.99  27.90 
1967 04 99.99 -99.99  27.50 
1967 05 99.99 -99.99  28.40 
1967 06 99.99 -99.99  28.40 
1967 07 99.99 -99.99  28.30 
1967 08 99.99 -99.99  28.00 
1967 09 99.99 -99.99  28.00 
1967 10 99.99 -99.99  28.60 
1967 11 99.99 -99.99  28.90 
1967 12 99.99 -99.99  28.00 
1968 01 99.99 -99.99  28.10 
1968 02 99.99 -99.99  27.50 
1968 03 99.99 -99.99  28.30 
1968 04 99.99 -99.99  27.50 
1968 05 99.99 -99.99  27.60 
1968 06 99.99 -99.99  27.90 
1968 07 99.99 -99.99  27.70 
1968 08 99.99 -99.99  28.10 
1968 09 99.99 -99.99  28.70 
1968 10 99.99 -99.99  28.90 
1968 11 99.99 -99.99  28.70 
1968 12 99.99 -99.99  28.80 
1969 02 99.99 -99.99  28.10 
1969 03 99.99 -99.99  27.70 
1969 04 99.99 -99.99  27.80 
1969 05 99.99 -99.99  28.50 
1969 06 99.99 -99.99  28.30 
1969 07 99.99 -99.99  28.20 
1969 08 99.99 -99.99  28.90 
1969 10 99.99 -99.99  29.20 
1969 11 99.99 -99.99  28.90 
1969 12 99.99 -99.99  28.50 
1970 01 99.99 -99.99  27.90 
1970 02 99.99 -99.99  27.50 
1970 03 99.99 -99.99  28.40 
1970 04 99.99 -99.99  28.00 
1970 05 99.99 -99.99  28.20 
1970 06 99.99 -99.99  28.10 
1970 07 99.99 -99.99  28.10 
1970 08 99.99 -99.99  28.40 
1970 09 99.99 -99.99  28.40 
1970 10 99.99 -99.99  28.50 
1970 11 99.99 -99.99  28.00 
1970 12 99.99 -99.99  28.30 
1971 01 99.99 -99.99  28.50 
1971 02 99.99 -99.99  28.30 
1971 03 99.99 -99.99  27.90 
1971 04 99.99 -99.99  27.90 
1971 05 99.99 -99.99  28.10 
1971 06 99.99 -99.99  27.80 
1971 07 99.99 -99.99  27.60 
1971 08 99.99 -99.99  27.60 
1971 11 99.99 -99.99  28.90 
1971 12 99.99 -99.99  28.30 
1972 01 99.99 -99.99  27.80 
1972 02 99.99 -99.99  28.30 
1972 03 99.99 -99.99  28.90 
1972 04 99.99 -99.99  28.60 
1972 05 99.99 -99.99  28.10 
1972 06 99.99 -99.99  28.10 
1972 07 99.99 -99.99  27.60 
1972 08 99.99 -99.99  27.30 
1972 09 99.99 -99.99  27.70 
1972 10 99.99 -99.99  28.20 
1972 11 99.99 -99.99  28.40 
1972 12 99.99 -99.99  27.90 
1973 01 99.99 -99.99  28.20 
1973 02 99.99 -99.99  28.20 
1973 03 99.99 -99.99  28.10 
1973 04 99.99 -99.99  27.80 
1973 05 99.99 -99.99  28.10 
1973 06 99.99 -99.99  28.10 
1973 07 99.99 -99.99  27.80 
1973 08 99.99 -99.99  27.90 
1973 09 99.99 -99.99  27.90 
1973 10 99.99 -99.99  27.70 
1973 11 99.99 -99.99  27.80 
1974 03 99.99 -99.99  27.80 
1974 04 99.99 -99.99  28.30 
1974 05 99.99 -99.99  28.20 
1974 06 99.99 -99.99  28.00 
1974 07 99.99 -99.99  27.80 
1974 08 99.99 -99.99  27.70 
1974 09 99.99 -99.99  28.20 
1974 10 99.99 -99.99  28.30 
1974 11 99.99 -99.99  28.40 
1974 12 99.99 -99.99  27.70 
1975 01 99.99 -99.99  27.20 
1975 02 99.99 -99.99  27.80 
1975 03 99.99 -99.99  27.50 
1975 04 99.99 -99.99  27.80 
1975 05 99.99 -99.99  28.00 
1975 06 99.99 -99.99  27.70 
1975 07 99.99 -99.99  27.60 
1975 08 99.99 -99.99  27.60 
1975 09 99.99 -99.99  27.90 
1975 10 99.99 -99.99  27.90 
1975 11 99.99 -99.99  27.80 
1975 12 99.99 -99.99  27.90 
1976 01 99.99 -99.99  28.60 
1976 02 99.99 -99.99  27.90 
1976 03 99.99 -99.99  27.70 
1976 04 99.99 -99.99  27.60 
1976 05 99.99 -99.99  28.10 
1976 06 99.99 -99.99  27.30 
1976 07 99.99 -99.99  27.00 
1976 08 99.99 -99.99  27.40 
1976 09 99.99 -99.99  28.10 
1976 10 99.99 -99.99  28.20 
1976 11 99.99 -99.99  28.70 
1976 12 99.99 -99.99  27.90 
1977 01 99.99 -99.99  27.40 
1977 02 99.99 -99.99  27.80 
1977 03 99.99 -99.99  27.40 
1977 04 99.99 -99.99  27.70 
1977 05 99.99 -99.99  28.20 
1977 06 99.99 -99.99  28.00 
1977 07 99.99 -99.99  27.60 
1977 08 99.99 -99.99  27.70 
1977 09 99.99 -99.99  27.80 
