1925 01 21.30  12.70  17.00 
1925 02 21.30  12.10  16.70 
1925 03 21.40  12.80  17.10 
1925 04 22.30  13.50  17.90 
1925 05 23.10  13.80  18.45 
1925 06 21.90  12.80  17.35 
1925 07 22.10  11.90  17.00 
1925 08 22.10  12.80  17.45 
1925 09 21.60  13.10  17.35 
1925 10 21.20  13.60  17.40 
1925 11 21.40  13.80  17.60 
1925 12 20.80  13.90  17.34 
1926 01 20.90  12.50  16.70 
1926 02 22.40  12.60  17.50 
1926 03 22.90  11.50  17.20 
1926 04 23.10  13.90  18.50 
1926 05 23.80  14.40  19.09 
1926 06 23.30  13.80  18.54 
1926 07 22.80  12.20  17.50 
1926 08 22.70  13.40  18.04 
1926 09 22.50  13.40  17.95 
1926 10 21.80  14.40  18.09 
1926 11 22.20  14.10  18.15 
1926 12 21.30  13.50  17.40 
1927 01 21.30  13.70  17.50 
1927 02 21.90  13.90  17.90 
1927 03 23.00  13.70  18.35 
1927 04 24.80  13.70  19.25 
1927 05 23.10  14.20  18.65 
1927 06 23.30  13.60  18.45 
1927 07 22.70  12.90  17.79 
1927 08 22.40  13.10  17.75 
1927 09 21.80  13.50  17.65 
1927 10 21.30  13.60  17.45 
1927 11 21.90  13.60  17.75 
1927 12 22.20  13.40  17.79 
1928 01 22.10  12.30  17.20 
1928 02 21.90  13.80  17.85 
1928 03 22.80  12.50  17.65 
1928 04 23.10  14.60  18.85 
1928 05 22.30  13.90  18.09 
1928 06 23.50  12.80  18.15 
1928 07 22.80  13.80  18.29 
1928 08 22.30  13.60  17.95 
1928 09 22.40  14.00  18.20 
1928 10 22.20  14.00  18.10 
1928 11 22.20  14.00  18.10 
1928 12 21.00  14.70  17.85 
1929 01 22.10  11.00  16.54 
1929 02 21.90  13.10  17.50 
1929 03 22.60  13.60  18.10 
1929 04 22.90  13.80  18.35 
1929 05 23.50  15.10  19.29 
1929 06 22.90  14.00  18.45 
1929 07 22.60  12.40  17.50 
1929 08 22.40  13.10  17.75 
1929 09 21.40  14.80  18.10 
1929 10 21.60  14.20  17.90 
1929 11 21.40  14.80  18.10 
1929 12 21.90  12.60  17.25 
1930 01 21.50  13.20  17.35 
1930 02 22.50  12.70  17.60 
1930 03 22.70  13.50  18.10 
1930 04 23.40  13.00  18.20 
1930 05 23.60  13.50  18.54 
1930 06 22.70  12.70  17.70 
1930 07 22.80  12.40  17.59 
1930 08 22.70  12.10  17.40 
1930 09 22.40  12.90  17.65 
1930 10 21.80  14.00  17.90 
1930 11 21.90  14.30  18.10 
1930 12 21.40  14.50  17.95 
1931 01 21.50  14.10  17.79 
1931 02 23.10  12.30  17.70 
1931 03 23.80  11.90  17.84 
1931 04 23.50  14.40  18.95 
1931 05 23.70  14.90  19.29 
1931 06 22.30  14.30  18.29 
1931 07 22.40  13.30  17.85 
1931 08 22.90  14.20  18.54 
1931 09 22.30  14.00  18.15 
1931 10 21.60  14.40  18.00 
1931 11 21.30  13.90  17.59 
1931 12 20.70  14.40  17.54 
1932 01 20.50  13.40  16.95 
1932 02 22.30  12.60  17.45 
1932 03 22.10  13.50  17.79 
1932 04 22.70  14.40  18.54 
1932 05 23.20  14.70  18.95 
1932 06 22.90  14.70  18.79 
1932 07 22.50  13.30  17.90 
1932 08 22.00  13.80  17.90 
1932 09 21.60  14.80  18.20 
1932 10 21.70  14.80  18.25 
1932 11 21.10  15.00  18.04 
1932 12 21.80  13.50  17.65 
1933 01 20.80  15.40  18.09 
1933 02 22.80  11.20  17.00 
1933 03 22.60  13.20  17.90 
1933 04 23.00  13.90  18.45 
1933 05 23.50  14.40  18.95 
1933 06 22.80  12.50  17.65 
1933 07 22.30  13.80  18.04 
1933 08 22.20  12.80  17.50 
1933 09 22.10  13.80  17.95 
1933 10 21.90  13.80  17.85 
1933 11 21.50  14.20  17.85 
1933 12 21.20  12.30  16.75 
1934 01 20.80  13.90  17.34 
1934 02 21.30  12.80  17.04 
1934 03 21.80  13.40  17.59 
1934 04 22.50  13.40  17.95 
1934 05 22.40  13.60  18.00 
1934 06 22.90  13.90  18.40 
1934 07 22.50  13.10  17.79 
1934 08 21.90  13.90  17.90 
1934 09 22.00  13.60  17.79 
1934 10 22.00  14.40  18.20 
1934 11 21.70  13.70  17.70 
1934 12 21.40  12.70  17.04 
1935 01 21.80  12.80  17.29 
1935 02 23.10  11.40  17.25 
1935 03 23.60  13.30  18.45 
1935 04 23.50  13.20  18.35 
1935 05 22.90  14.20  18.54 
1935 06 22.70  13.70  18.20 
1935 07 22.40  13.30  17.85 
1935 08 22.50  13.10  17.79 
1935 09 22.10  13.40  17.75 
1935 10 21.90  15.30  18.60 
1935 11 21.90  14.60  18.25 
1935 12 22.10  13.80  17.95 
1936 01 21.60  14.20  17.90 
1936 02 23.50  12.30  17.90 
1936 03 22.90  13.30  18.10 
1936 04 24.10  14.30  19.20 
1936 05 23.40  14.30  18.85 
1936 06 22.60  12.50  17.54 
1936 07 22.70  13.20  17.95 
1936 08 22.30  13.80  18.04 
1936 09 22.50  13.70  18.10 
1936 10 21.70  14.50  18.10 
1936 11 21.80  14.50  18.15 
1936 12 22.00  13.90  17.95 
1937 01 22.40  12.10  17.25 
1937 02 22.90  12.30  17.60 
1937 03 23.80  13.40  18.59 
1937 04 23.80  14.80  19.29 
1937 05 23.10  14.60  18.85 
1937 06 23.50  14.00  18.75 
1937 07 22.70  13.10  17.90 
1937 08 22.30  12.90  17.59 
1937 09 22.40  14.30  18.35 
1937 10 21.60  14.30  17.95 
1937 11 22.10  14.30  18.20 
1937 12 21.30  14.20  17.75 
1938 01 21.80  13.50  17.65 
1938 02 23.10  12.10  17.60 
1938 03 22.80  13.60  18.20 
1938 04 23.20  14.90  19.04 
1938 05 23.20  14.80  19.00 
1938 06 22.80  12.70  17.75 
1938 07 22.90  12.40  17.65 
1938 08 22.20  13.20  17.70 
1938 09 22.20  13.60  17.90 
1938 10 21.90  13.50  17.70 
1938 11 21.60  13.40  17.50 
1938 12 21.50  11.70  16.60 
1939 01 21.10  13.70  17.40 
1939 02 21.70  12.40  17.04 
1939 03 22.80  11.70  17.25 
1939 04 23.10  14.40  18.75 
1939 05 22.70  14.40  18.54 
1939 06 22.70  13.80  18.25 
1939 07 22.70  12.10  17.40 
1939 08 21.90  14.00  17.95 
1939 09 21.80  14.10  17.95 
1939 10 22.10  14.30  18.20 
1939 11 22.10  14.40  18.25 
1939 12 21.00  14.40  17.70 
1940 01 21.50  12.20  16.85 
1940 02 21.70  11.80  16.75 
1940 03 23.40  10.80  17.10 
1940 04 23.80  13.20  18.50 
1940 05 23.50  14.80  19.15 
1940 06 23.10  14.30  18.70 
1940 07 22.80  12.70  17.75 
1940 08 22.10  14.50  18.29 
1940 09 22.10  14.00  18.04 
1940 10 22.30  14.20  18.25 
1940 11 21.50  13.50  17.50 
1940 12 21.80  13.50  17.65 
1941 01 22.50  13.30  17.90 
1941 02 23.30  13.30  18.29 
1941 03 24.00  12.30  18.15 
1941 04 24.10  14.50  19.29 
1941 05 24.20  15.40  19.79 
1941 06 23.80  13.30  18.54 
1941 07 22.90  12.60  17.75 
1941 08 22.60  14.40  18.50 
1941 09 22.40  13.50  17.95 
1941 10 22.50  14.80  18.65 
1941 11 22.80  15.10  18.95 
1946 01 21.60  12.90  17.25 
1946 02 22.00  13.90  17.95 
1946 03 23.20  13.80  18.50 
1946 04 23.50  14.70  19.10 
1946 05 23.10  15.20  19.15 
1946 06 22.80  13.30  18.04 
1946 07 23.10  12.80  17.95 
1946 08 22.80  13.70  18.25 
1946 09 21.60  14.30  17.95 
1946 10 22.20  13.90  18.04 
1946 11 22.50  14.30  18.40 
1946 12 21.70  14.20  17.95 
1947 01 22.60  14.10  18.35 
1947 02 22.50  13.50  18.00 
1947 03 22.80  14.90  18.84 
1947 04 23.40  14.80  19.10 
1947 05 22.80  14.70  18.75 
1947 06 23.60  13.40  18.50 
1947 07 23.00  12.60  17.79 
1947 08 23.00  14.40  18.70 
1947 09 22.80  14.20  18.50 
1947 10 22.80  14.60  18.70 
1947 11 22.20  14.10  18.15 
1947 12 21.30  14.60  17.95 
1948 01 21.30  13.80  17.54 
1948 02 22.60  12.70  17.65 
1948 03 23.20  13.30  18.25 
1948 04 23.40  13.20  18.29 
1948 05 23.50  13.70  18.60 
1948 06 23.00  13.20  18.10 
1948 07 22.90  12.90  17.90 
1948 08 22.60  13.10  17.85 
1948 09 22.40  13.20  17.79 
1948 10 22.10  13.40  17.75 
1948 11 21.40  13.70  17.54 
1948 12 22.30  12.60  17.45 
1949 01 21.80  12.60  17.20 
1949 02 22.30  12.60  17.45 
1949 03 23.00  11.60  17.29 
1949 04 23.50  13.30  18.40 
1949 05 23.30  13.40  18.34 
1949 06 22.70  13.10  17.90 
1949 07 22.50  13.20  17.85 
1949 08 22.50  12.30  17.40 
1949 09 22.90  13.10  18.00 
1949 10 22.00  14.20  18.10 
1949 11 21.90  13.90  17.90 
1949 12 22.20  13.30  17.75 
1950 01 22.10  12.80  17.45 
1950 02 22.80  12.10  17.45 
1950 03 23.30  12.70  18.00 
1950 04 23.20  14.50  18.85 
1950 05 23.70  14.50  19.10 
1950 06 23.10  13.30  18.20 
1950 07 22.90  12.10  17.50 
1950 08 22.50  12.90  17.70 
1950 09 22.30  13.70  18.00 
1950 10 22.40  13.40  17.90 
1950 11 21.30  13.60  17.45 
1950 12 21.10  14.20  17.65 
1951 01 20.70  14.00  17.35 
1951 02 21.80  12.80  17.29 
1951 03 23.40  13.40  18.40 
1951 04 23.70  13.90  18.79 
1951 05 22.60  14.70  18.65 
1951 06 24.10  13.10  18.60 
1951 07 22.70  13.30  18.00 
1951 08 23.10  13.10  18.10 
1951 09 22.60  13.90  18.25 
1951 10 22.50  13.90  18.20 
1951 11 22.70  13.80  18.25 
1951 12 22.10  14.70  18.40 
1952 01 21.70  14.90  18.29 
1952 02 22.40  14.30  18.35 
1952 03 23.00  13.80  18.40 
1952 04 23.70  14.80  19.25 
1952 05 23.40  14.40  18.90 
1952 06 23.30  13.50  18.40 
1952 07 22.80  12.60  17.70 
1952 08 22.40  13.10  17.75 
1952 09 22.70  12.90  17.79 
1952 10 99.99  14.40 -99.99 
1952 11 22.10  14.60  18.35 
1952 12 21.80  11.70  16.75 
1953 01 99.99  13.50 -99.99 
1953 02 99.99  13.20 -99.99 
1953 03 99.99  13.10 -99.99 
1953 04 99.99  13.90 -99.99 
1953 05 99.99  13.80 -99.99 
1953 06 99.99  13.60 -99.99 
1953 07 99.99  12.90 -99.99 
1953 08 99.99  13.40 -99.99 
1953 09 99.99  14.20 -99.99 
1953 10 99.99  13.90 -99.99 
1953 11 99.99  13.90 -99.99 
1953 12 99.99  13.40 -99.99 
1954 01 22.30  13.40  17.84 
1954 02 22.70  13.10  17.90 
1954 03 23.50  13.80  18.65 
1954 04 23.60  14.50  19.04 
1954 05 23.50  11.70  17.60 
1954 06 23.20  11.50  17.35 
1954 07 22.70  11.50  17.10 
1954 08 22.50  11.70  17.10 
1954 09 22.30  11.80  17.04 
1954 10 21.80  13.40  17.59 
1954 11 21.80  13.90  17.84 
1954 12 21.80  13.30  17.54 
1955 01 20.70 -99.99 -99.99 
1955 02 22.90 -99.99 -99.99 
1955 03 23.60 -99.99 -99.99 
1955 04 23.10 -99.99 -99.99 
1955 05 23.80 -99.99 -99.99 
1955 06 23.30 -99.99 -99.99 
1955 07 22.80 -99.99 -99.99 
1955 08 22.50 -99.99 -99.99 
1955 09 22.80 -99.99 -99.99 
1955 10 22.70 -99.99 -99.99 
1955 11 22.10 -99.99 -99.99 
1955 12 21.50 -99.99 -99.99 
1956 01 22.00  12.20  17.10 
1956 02 23.30  11.20  17.25 
1956 03 23.20  12.60  17.90 
1956 04 23.50  13.60  18.54 
1956 05 23.60  14.30  18.95 
1956 06 22.80  13.50  18.15 
1956 07 23.00  16.10  19.54 
1956 08 22.20  13.20  17.70 
1956 10 23.20  13.20  18.20 
1956 11 22.20  13.10  17.65 
1956 12 21.60  13.50  17.54 
1957 01 21.60  11.10  16.35 
1957 02 22.90  11.40  17.15 
1957 03 23.40  11.40  17.40 
1957 04 23.40  13.90  18.65 
1957 05 23.50  14.10  18.79 
1957 06 23.70  13.90  18.79 
1957 07 22.80  13.40  18.09 
1957 08 22.90  13.80  18.35 
1957 09 22.90  14.30  18.60 
1957 10 22.60  13.60  18.10 
1957 11 22.90  13.70  18.29 
1957 12 22.10  15.00  18.54 
1958 01 22.80  12.40  17.59 
1958 02 23.30  11.80  17.54 
1958 03 24.20  13.10  18.65 
1958 04 24.30  13.10  18.70 
1958 05 23.20  15.10  19.15 
1958 06 23.50  13.70  18.60 
1958 07 23.90  11.40  17.65 
1958 08 22.70  13.10  17.90 
1958 09 23.10  11.50  17.29 
1958 10 22.70  14.20  18.45 
1958 11 22.40  12.90  17.65 
1958 12 22.20  12.20  17.20 
1959 01 21.80  12.90  17.34 
1959 02 23.70  11.70  17.70 
1959 03 23.40  12.30  17.85 
1959 04 23.40  13.80  18.60 
1959 05 23.70  14.20  18.95 
1959 06 23.40  13.60  18.50 
1959 07 22.70  13.40  18.04 
1959 08 22.40  13.20  17.79 
1959 09 22.40  13.50  17.95 
1959 10 22.70  14.40  18.54 
1959 11 22.40  14.40  18.40 
1959 12 22.40  13.30  17.85 
1960 01 21.90  12.70  17.29 
1960 02 21.90  13.70  17.79 
1960 03 23.20  11.80  17.50 
1960 04 23.50  13.90  18.70 
1960 05 23.80  13.80  18.79 
1960 06 23.00  13.20  18.10 
1960 07 22.90  13.40  18.15 
1960 08 22.80  13.90  18.34 
1960 09 22.80  13.60  18.20 
1960 10 22.70  13.20  17.95 
1960 11 21.80  14.10  17.95 
1960 12 21.90  13.70  17.79 
1961 01 21.30  12.70  17.00 
1961 02 22.80  12.50  17.65 
1961 03 22.90  11.50  17.20 
1961 04 23.70  12.80  18.25 
1961 05 23.90  13.30  18.60 
1961 06 22.70  12.10  17.40 
1961 07 23.00 -99.99 -99.99 
1961 08 99.99  12.60 -99.99 
1961 09 99.99  12.70 -99.99 
1961 10 22.10  13.20  17.65 
1961 11 22.50  14.20  18.35 
1961 12 21.50  14.50  18.00 
1962 01 21.40  14.10  17.75 
1962 02 21.60  11.60  16.60 
1962 03 22.90  12.90  17.90 
1962 04 23.20  13.10  18.15 
1962 05 23.80  14.60  19.20 
1962 06 23.00  12.80  17.90 
1962 07 22.90  13.20  18.04 
1962 08 22.20  13.40  17.79 
1962 09 22.60  13.80  18.20 
1962 10 21.70  13.60  17.65 
1962 11 22.10  13.90  18.00 
1962 12 21.70  13.80  17.75 
1963 01 20.60  13.20  16.90 
1963 02 21.30  12.80  17.04 
1963 03 22.50  12.30  17.40 
1963 04 23.80  12.50  18.15 
1963 05 23.50  14.70  19.10 
1963 06 23.50  13.50  18.50 
1963 07 23.10  13.20  18.15 
1963 08 22.70  13.30  18.00 
1963 09 22.50  14.20  18.35 
1963 10 22.20  14.40  18.29 
1963 11 22.40 -99.99 -99.99 
1963 12 22.20  13.20  17.70 
1964 04 23.10  15.10  19.10 
1964 05 22.40  15.30  18.85 
1964 06 22.80  13.70  18.25 
1964 07 21.40  14.00  17.70 
1964 08 22.30  13.40  17.84 
1964 09 21.60  14.20  17.90 
1964 10 21.20  14.40  17.79 
1964 11 20.20  14.60  17.40 
1964 12 20.40  13.40  16.90 
1965 01 21.50  12.10  16.79 
1965 02 21.70  13.30  17.50 
1965 03 21.90  13.50  17.70 
1965 04 22.40  14.40  18.40 
1965 05 22.80  14.50  18.65 
1965 06 22.50  13.70  18.10 
1965 07 21.90  13.40  17.65 
1965 08 21.60  13.90  17.75 
1965 09 21.90  14.10  18.00 
1965 10 21.90  14.40  18.15 
1965 11 21.60  14.90  18.25 
1965 12 21.10  15.20  18.15 
1966 01 21.40  14.40  17.90 
1966 02 22.30  14.20  18.25 
1966 03 22.70  14.60  18.65 
1966 04 23.30  15.00  19.15 
1966 05 22.60  15.10  18.85 
1966 06 22.40  14.40  18.40 
1966 07 21.90  14.20  18.04 
1966 08 22.10  14.30  18.20 
1966 09 22.20  14.20  18.20 
1966 10 21.50  14.70  18.10 
1966 11 21.70  14.70  18.20 
1966 12 21.20  14.40  17.79 
1967 01 20.50  13.80  17.15 
1967 02 21.10  14.10  17.60 
1967 03 22.40  13.50  17.95 
1967 04 22.70  14.50  18.60 
1967 06 22.10  14.10  18.10 
1967 07 22.20  14.10  18.15 
1967 08 21.90  14.00  17.95 
1967 09 21.70  13.70  17.70 
1967 10 21.50  14.30  17.90 
1967 11 21.30  14.90  18.09 
1967 12 20.50  14.40  17.45 
1968 01 99.99 -99.99  16.79 
1968 02 99.99 -99.99  17.20 
1968 03 99.99 -99.99  18.10 
1968 04 99.99 -99.99  18.50 
1968 05 99.99 -99.99  18.29 
1968 06 99.99 -99.99  18.20 
1968 07 99.99 -99.99  18.00 
1968 08 99.99 -99.99  17.79 
1968 09 99.99 -99.99  17.70 
1968 10 99.99 -99.99  17.70 
1968 11 99.99 -99.99  17.79 
1968 12 99.99 -99.99  17.40 
1969 01 99.99 -99.99  17.70 
1969 02 99.99 -99.99  17.70 
1969 03 99.99 -99.99  18.60 
1969 04 99.99 -99.99  18.79 
1969 05 99.99 -99.99  19.00 
1969 06 99.99 -99.99  18.40 
1969 07 99.99 -99.99  17.70 
1969 08 99.99 -99.99  17.60 
1969 09 99.99 -99.99  17.70 
1969 10 99.99 -99.99  17.79 
1969 11 99.99 -99.99  17.50 
1969 12 99.99 -99.99  17.29 
1970 01 99.99 -99.99  17.40 
1970 02 99.99 -99.99  17.70 
1970 03 99.99 -99.99  18.20 
1970 04 99.99 -99.99  18.79 
1970 05 99.99 -99.99  18.79 
1970 06 99.99 -99.99  18.50 
1970 07 99.99 -99.99  17.60 
1970 08 99.99 -99.99  17.50 
1970 09 99.99 -99.99  17.50 
1970 10 99.99 -99.99  17.60 
1970 11 99.99 -99.99  17.60 
1970 12 99.99 -99.99  17.20 
1971 01 99.99 -99.99  16.79 
1971 02 99.99 -99.99  17.10 
1971 03 99.99 -99.99  17.50 
1971 04 99.99 -99.99  18.10 
1971 05 99.99 -99.99  18.20 
1971 06 99.99 -99.99  17.90 
1971 07 99.99 -99.99  17.50 
1971 08 99.99 -99.99  17.20 
1971 09 99.99 -99.99  17.60 
1971 10 99.99 -99.99  17.50 
1971 11 99.99 -99.99  17.10 
1971 12 99.99 -99.99  17.10 
1972 01 99.99 -99.99  16.50 
1972 02 99.99 -99.99  17.29 
1972 03 99.99 -99.99  17.50 
1972 04 99.99 -99.99  18.10 
1972 05 99.99 -99.99  18.40 
1972 06 99.99 -99.99  18.20 
1972 07 99.99 -99.99  17.90 
1972 08 99.99 -99.99  17.79 
1972 09 99.99 -99.99  17.79 
1972 10 99.99 -99.99  18.10 
1972 11 99.99 -99.99  17.90 
1972 12 99.99 -99.99  17.70 
1973 01 99.99 -99.99  17.29 
1973 02 99.99 -99.99  17.90 
1973 03 99.99 -99.99  18.29 
1973 04 99.99 -99.99  18.79 
1973 05 99.99 -99.99  18.20 
1973 06 99.99 -99.99  18.40 
1973 07 99.99 -99.99  17.79 
1973 08 99.99 -99.99  17.70 
1973 09 99.99 -99.99  17.60 
1973 10 99.99 -99.99  17.60 
1973 11 99.99 -99.99  17.40 
1973 12 99.99 -99.99  16.60 
1974 01 99.99 -99.99  16.29 
1974 02 99.99 -99.99  16.70 
1974 03 99.99 -99.99  17.20 
1974 04 99.99 -99.99  18.10 
1974 05 99.99 -99.99  18.10 
1974 06 99.99 -99.99  17.90 
1974 07 99.99 -99.99  17.29 
1974 08 99.99 -99.99  17.90 
1974 09 99.99 -99.99  17.40 
1974 10 99.99 -99.99  17.40 
1974 11 99.99 -99.99  17.50 
1974 12 99.99 -99.99  17.20 
1975 01 99.99 -99.99  17.10 
1975 02 99.99 -99.99  17.10 
1975 03 99.99 -99.99  17.40 
1975 04 99.99 -99.99  18.29 
1975 05 99.99 -99.99  17.90 
1975 06 99.99 -99.99  17.70 
1975 07 99.99 -99.99  16.90 
1975 08 99.99 -99.99  17.60 
1975 09 99.99 -99.99  17.00 
1975 10 99.99 -99.99  17.20 
1975 11 99.99 -99.99  16.90 
1975 12 99.99 -99.99  16.50 
1976 01 99.99 -99.99  15.90 
1976 02 99.99 -99.99  17.10 
1976 03 99.99 -99.99  17.70 
1976 04 99.99 -99.99  17.70 
1976 05 99.99 -99.99  17.40 
1976 06 99.99 -99.99  17.00 
1976 07 99.99 -99.99  17.29 
1976 08 99.99 -99.99  17.29 
1976 09 99.99 -99.99  17.20 
1976 10 99.99 -99.99  17.70 
1976 11 99.99 -99.99  17.29 
1976 12 99.99 -99.99  17.20 
1977 01 99.99 -99.99  17.10 
1977 02 99.99 -99.99  16.90 
1977 03 99.99 -99.99  17.50 
1977 04 99.99 -99.99  18.40 
1977 05 99.99 -99.99  18.60 
1977 06 99.99 -99.99  17.90 
1977 07 99.99 -99.99  17.70 
1977 08 99.99 -99.99  17.50 
1977 09 99.99 -99.99  17.70 
1977 10 99.99 -99.99  17.79 
1977 11 99.99 -99.99  17.79 
1977 12 99.99 -99.99  17.60 
1978 01 99.99 -99.99  17.50 
1978 02 99.99 -99.99  17.60 
1978 03 99.99 -99.99  18.50 
1978 04 99.99 -99.99  18.20 
1978 05 99.99 -99.99  19.00 
1978 06 99.99 -99.99  18.10 
1978 07 99.99 -99.99  17.60 
1978 08 99.99 -99.99  17.40 
1978 09 99.99 -99.99  17.40 
1978 10 99.99 -99.99  17.40 
1978 11 99.99 -99.99  17.29 
1978 12 99.99 -99.99  17.10 
1979 01 99.99 -99.99  17.10 
1979 02 99.99 -99.99  17.70 
1979 03 99.99 -99.99  18.10 
1979 04 99.99 -99.99  18.50 
1979 05 99.99 -99.99  18.40 
1979 06 99.99 -99.99  18.40 
1979 07 99.99 -99.99  17.60 
1979 08 99.99 -99.99  17.79 
1979 09 99.99 -99.99  17.90 
1979 10 99.99 -99.99  17.90 
1979 11 99.99 -99.99  17.79 
1979 12 99.99 -99.99  17.10 
1980 01 99.99 -99.99  17.10 
1980 02 99.99 -99.99  17.79 
1980 03 99.99 -99.99  17.79 
1980 04 99.99 -99.99  18.60 
1980 05 99.99 -99.99  18.50 
1980 06 99.99 -99.99  18.20 
1980 07 99.99 -99.99  18.00 
1980 08 99.99 -99.99  17.40 
1980 09 99.99 -99.99  17.90 
1980 10 99.99 -99.99  17.70 
1980 11 99.99 -99.99  17.70 
1980 12 99.99 -99.99  17.20 
