1956 05 99.99 -99.99  -8.39 
1956 06 99.99 -99.99  -3.30 
1956 07 99.99 -99.99   -.70 
1956 08 99.99 -99.99  -2.70 
1957 07 99.99 -99.99   -.30 
1957 08 99.99 -99.99  -1.80 
1957 09 99.99 -99.99  -7.90 
1957 10 99.99 -99.99 -17.29 
1957 11 99.99 -99.99 -25.00 
1957 12 99.99 -99.99 -36.40 
1958 01 99.99 -99.99 -31.40 
1958 02 99.99 -99.99 -32.50 
1958 03 99.99 -99.99 -30.60 
1958 04 99.99 -99.99 -27.60 
1958 05 99.99 -99.99 -13.10 
1958 06 99.99 -99.99  -2.00 
1958 07 99.99 -99.99    . 0 
1958 08 99.99 -99.99   -.70 
1958 09 99.99 -99.99  -9.20 
1958 10 99.99 -99.99 -21.70 
1958 11 99.99 -99.99 -31.20 
1958 12 99.99 -99.99 -28.90 
1959 05 99.99 -99.99 -12.60 
1959 06 99.99 -99.99  -2.00 
1959 07 99.99 -99.99   -.20 
1959 08 99.99 -99.99   -.90 
