1963 01 -1.71  -6.47  -4.09 
1963 02 -3.44  -7.65  -5.54 
1963 03   . 7  -4.48  -2.20 
1963 04  6.47   2.03   4.25 
1963 05 12.81   8.26  10.53 
1963 06 19.84  14.47  17.15 
1963 07 18.95  14.82  16.88 
1963 08 18.89  14.68  16.78 
1963 09 15.43  11.40  13.41 
1963 10 10.96   8.08   9.52 
1963 11  6.63   3.44   5.03 
1963 12  2.10   -.94    .58 
1964 01  2.66    .31   1.48 
1964 02  1.43  -1.85   -.21 
1964 03  3.10  -1.30    .90 
1964 04  8.47   3.57   6.02 
1964 05 13.71   8.97  11.34 
1964 06 16.04  10.58  13.31 
1964 07 17.50  13.19  15.34 
1964 08 18.49  13.45  15.96 
1964 09 14.39  10.49  12.44 
1964 10 10.13   7.21   8.67 
1964 11  6.75   4.00   5.37 
1964 12  3.16   -.12   1.52 
