1959 01 -25.80 -32.20 -29.00 
1959 02 -22.90 -29.70 -26.30 
1959 03 -23.30 -30.40 -26.84 
1959 04 -14.60 -23.40 -19.00 
1959 05  -6.00 -14.10 -10.05 
1959 06   3.20  -2.60   0.30 
1959 07   9.80   2.60   6.20 
1959 08   7.10   0.70   3.90 
1959 09   2.40  -2.09   0.15 
1959 10  -8.20 -13.10 -10.65 
1959 11 -17.90 -23.70 -20.80 
1959 12 -20.60 -26.90 -23.75 
1960 01 -27.10 -35.70 -31.40 
1960 02 -27.70 -35.59 -31.65 
1960 03 -26.10 -33.40 -29.75 
1960 04 -15.10 -23.60 -19.35 
1960 05  -2.30  -9.10  -5.70 
1960 06   9.50   1.10   5.30 
1960 07  11.90   4.10   8.00 
1960 08  10.30   4.60   7.45 
1960 09   2.40   -.40   1.00 
1960 10  -5.30 -10.50  -7.90 
1960 11 -21.10 -26.30 -23.70 
1960 12 -21.60 -27.70 -24.65 
1961 01 -99.99 -35.00 -99.99 
1961 02 -27.40 -33.30 -30.34 
1961 03 -99.99 -37.80 -99.99 
1961 04 -18.00 -25.20 -21.60 
1961 05  -4.60 -11.70  -8.14 
1961 06   9.80   1.50   5.65 
1961 07  15.80   5.30  10.55 
1961 08   9.89   4.10   7.00 
1961 09   0.70  -2.90  -1.10 
1961 10  -9.00 -14.30 -11.65 
1961 11 -16.50 -23.30 -19.90 
1961 12 -99.99 -35.00 -99.99 
1962 01 -26.80 -33.00 -29.90 
1962 02 -30.30 -36.00 -33.15 
1962 03 -21.70 -30.30 -26.00 
1962 04 -12.40 -22.50 -17.45 
1962 05  -7.20 -16.40 -11.79 
1962 06  10.20   2.30   6.25 
1962 07  11.80   4.69   8.25 
1962 08  12.50   4.60   8.55 
1962 09   4.40   -.70   1.85 
1962 10  -3.70  -6.70  -5.20 
1962 11 -19.60 -23.70 -21.65 
1962 12 -22.40 -27.20 -24.80 
1963 01 -29.80 -34.20 -32.00 
1963 02 -28.10 -31.30 -29.70 
1963 03 -27.90 -34.80 -31.34 
1963 04 -11.20 -19.70 -15.45 
1963 05  -2.30  -8.39  -5.35 
1963 06   6.20   0.30   3.25 
1963 07  12.00   4.80   8.39 
