1919 09 99.99    . 1 -99.99 
1919 10 99.99  -4.59 -99.99 
1920 10  6.55 -14.03  -3.73 
1923 07 19.26   7.01  13.13 
1923 08 18.35   8.14  13.25 
1923 09 11.18   1.75   6.46 
1923 10  4.25  -1.21   1.52 
1923 11 -3.49 -10.02  -6.75 
1923 12 17.14 -23.45 -20.29 
1924 01 12.95 -20.61 -16.78 
1924 02 10.17 -18.42 -14.29 
1924 03 -1.81 -11.17  -6.49 
1924 04 -7.08 -19.18 -13.13 
1924 05 10.33  -2.65   3.84 
1924 06 16.33   4.73  10.53 
1924 10   .35  -7.88  -3.76 
1924 11 -2.96 -10.49  -6.72 
1924 12 -8.30 -15.47 -11.88 
1925 01 17.00 -25.66 -21.33 
1925 02 13.64 -22.60 -18.12 
1925 03 -2.63 -12.42  -7.52 
1925 04  1.80  -7.49  -2.84 
1925 05 10.76  -1.17   4.79 
1925 06 16.02   3.66   9.84 
1925 07 17.45   7.46  12.45 
1925 08 18.24   7.92  13.08 
1925 09 11.79   5.08   8.43 
1925 10  6.43    .-8   3.17 
1925 11 -3.29 -10.85  -7.07 
1925 12 11.89 -20.44 -16.16 
1926 01 -7.28 -14.84 -11.06 
1926 02 11.07 -19.42 -15.24 
1926 03  1.32  -7.94  -3.31 
1926 04  7.23  -3.63   1.80 
1926 05  9.93  -1.83   4.05 
1926 06 19.45   5.98  12.71 
1926 09 12.82   6.02   9.42 
1926 10  4.69  -3.34    .67 
1926 11 -2.10  -7.71  -4.91 
1926 12 99.99 -20.10 -99.99 
1927 01 99.99 -11.40 -99.99 
1929 09 12.56   5.42   8.99 
1929 11  -.63  -7.91  -4.27 
1929 12 -7.32 -16.40 -11.86 
1930 01  -.95  -7.23  -4.09 
1930 02 15.64 -26.03 -20.83 
1930 03 -7.63 -20.42 -14.02 
1930 04   .-3  -9.14  -4.58 
1930 11 10.17 -18.49 -14.33 
1930 12 -8.52 -16.71 -12.62 
1931 01 -8.85 -18.28 -13.56 
1931 02 -8.67 -20.03 -14.35 
1931 03 -5.36 -16.56 -10.96 
1931 04 -1.10 -13.31  -7.20 
1931 05  8.27  -3.00   2.63 
1931 06 17.33   1.60   9.46 
1931 07 16.94   4.57  10.75 
1931 08 16.12   5.47  10.79 
1931 09  8.87   -.31   4.27 
1931 10  1.14  -6.70  -2.78 
1931 11 -3.18 -10.24  -6.71 
1931 12 -8.87 -16.37 -12.62 
1932 01 15.94 -25.89 -20.91 
1932 02 13.40 -24.77 -19.08 
1932 03 -2.81 -10.70  -6.75 
1932 04  3.57  -4.90   -.66 
1932 05  7.57  -1.94   2.81 
1932 06 15.28   3.75   9.51 
1932 07 15.82   6.06  10.94 
1932 08 13.35   5.68   9.51 
1932 09  9.60    .47   5.03 
1932 10  4.00  -4.23   -.11 
1932 11 -8.39 -17.79 -13.09 
1932 12 -7.61 -13.88 -10.74 
1933 01 15.83 -25.53 -20.68 
1933 02 10.24 -19.36 -14.80 
1933 03 -5.00 -17.23 -11.11 
1933 04  3.07  -4.88   -.90 
1933 05  7.55  -3.20   2.17 
1933 06 12.50   2.76   7.63 
