1961 01 99.99 -99.99  24.30 
1961 02 99.99 -99.99  24.10 
1961 03 99.99 -99.99  24.60 
1961 05 99.99 -99.99  23.80 
1961 06 99.99 -99.99  24.40 
1961 09 99.99 -99.99  25.90 
1961 10 99.99 -99.99  25.10 
1962 04 99.99 -99.99  24.10 
1962 07 99.99 -99.99  23.40 
1962 08 99.99 -99.99  23.10 
1962 09 99.99 -99.99  23.20 
1962 10 99.99 -99.99  24.00 
1962 11 99.99 -99.99  24.00 
1962 12 99.99 -99.99  24.00 
1963 01 99.99 -99.99  24.20 
1963 02 99.99 -99.99  26.00 
1963 03 99.99 -99.99  24.70 
1963 05 99.99 -99.99  22.60 
1963 07 99.99 -99.99  21.10 
1963 08 99.99 -99.99  21.40 
1963 09 99.99 -99.99  25.40 
1963 10 99.99 -99.99  26.50 
1964 03 99.99 -99.99  23.10 
1964 09 99.99 -99.99  22.80 
1964 12 99.99 -99.99  23.80 
1965 03 99.99 -99.99  23.50 
1965 04 99.99 -99.99  23.40 
1965 05 99.99 -99.99  23.50 
1965 06 99.99 -99.99  22.50 
1965 12 99.99 -99.99  24.70 
