1949 12   1.30 -99.99 -99.99 
1950 01  -8.64 -17.59 -13.12 
1950 02   1.85  -5.90  -2.02 
1950 03   4.84  -3.02   0.91 
1950 04  12.52   1.05   6.79 
1950 05  18.15   4.16  11.15 
1950 06  22.38   9.10  15.74 
1950 07  28.02  11.60  19.81 
1950 08  27.17  10.40  18.78 
1950 09  24.45   4.48  14.47 
1950 10  11.09   3.44   7.26 
1950 11   5.24  -1.72   1.75 
1950 12   4.08  -1.97   1.05 
1951 01   0.00  -7.38  -3.69 
1951 02   2.28  -6.46  -2.09 
1951 03   3.98  -5.87   -.94 
1951 04  15.81   0.36   8.08 
1951 05  20.02   4.12  12.07 
1951 06  23.30   8.10  15.70 
1951 07  29.28  10.13  19.70 
1951 08  28.09   9.46  18.77 
1951 09  20.37   5.45  12.91 
1951 10  11.41   3.17   7.29 
1951 11   5.28  -2.98   1.15 
