1961 02 99.99 -99.99  24.20 
1961 03 99.99 -99.99  25.00 
1961 04 99.99 -99.99  24.40 
1961 07 99.99 -99.99  19.40 
1961 10 99.99 -99.99  25.10 
1961 12 99.99 -99.99  24.20 
1962 02 99.99 -99.99  24.70 
1962 03 99.99 -99.99  24.70 
1962 04 99.99 -99.99  23.90 
1962 08 99.99 -99.99  21.60 
1962 11 99.99 -99.99  24.80 
1962 12 99.99 -99.99  24.10 
1963 01 99.99 -99.99  24.00 
1963 02 99.99 -99.99  24.40 
1963 03 99.99 -99.99  24.70 
1963 04 99.99 -99.99  24.20 
1963 05 99.99 -99.99  20.50 
1963 06 99.99 -99.99  18.70 
1963 07 99.99 -99.99  18.70 
1963 08 99.99 -99.99  21.40 
1963 09 99.99 -99.99  25.70 
1963 12 99.99 -99.99  25.60 
1964 01 99.99 -99.99  25.10 
1964 02 99.99 -99.99  24.70 
1964 03 99.99 -99.99  24.90 
1964 04 99.99 -99.99  24.00 
1964 05 99.99 -99.99  21.70 
1964 06 99.99 -99.99  18.50 
1965 04 99.99 -99.99  23.90 
1965 05 99.99 -99.99  20.10 
1965 06 99.99 -99.99  23.80 
1966 06 99.99 -99.99  19.50 
1966 07 99.99 -99.99  19.40 
1966 08 99.99 -99.99  22.30 
1966 09 99.99 -99.99  23.40 
1966 11 99.99 -99.99  25.40 
