1965 01 99.99 -99.99  24.00 
1965 02 99.99 -99.99  25.30 
1965 03 99.99 -99.99  29.30 
1965 04 99.99 -99.99  31.10 
1965 05 99.99 -99.99  31.30 
1965 06 99.99 -99.99  30.30 
1965 07 99.99 -99.99  27.70 
1965 08 99.99 -99.99  26.10 
1965 09 99.99 -99.99  27.30 
1965 10 99.99 -99.99  27.50 
1965 11 99.99 -99.99  25.20 
1965 12 99.99 -99.99  22.50 
1966 01 99.99 -99.99  23.80 
1966 02 99.99 -99.99  23.90 
1966 03 99.99 -99.99  28.50 
1966 04 99.99 -99.99  31.20 
1966 05 99.99 -99.99  30.90 
1966 06 99.99 -99.99  29.50 
1966 07 99.99 -99.99  27.90 
1966 08 99.99 -99.99  26.90 
1966 09 99.99 -99.99  27.30 
1966 10 99.99 -99.99  28.50 
1966 11 99.99 -99.99  26.70 
1966 12 99.99 -99.99  24.50 
1967 01 99.99 -99.99  21.70 
1967 02 99.99 -99.99  24.70 
1967 03 99.99 -99.99  27.00 
1967 04 99.99 -99.99  30.40 
1967 05 99.99 -99.99  31.40 
1967 06 99.99 -99.99  29.90 
1967 07 99.99 -99.99  27.50 
1967 08 99.99 -99.99  26.50 
1967 09 99.99 -99.99  27.40 
1967 10 99.99 -99.99  27.70 
1967 11 99.99 -99.99  24.50 
1967 12 99.99 -99.99  23.80 
1968 01 99.99 -99.99  23.50 
1968 02 99.99 -99.99  23.90 
1968 03 99.99 -99.99  27.80 
1968 04 99.99 -99.99  29.20 
1968 05 99.99 -99.99  31.50 
1968 06 99.99 -99.99  28.00 
1968 07 99.99 -99.99  27.00 
1968 08 99.99 -99.99  27.90 
1968 09 99.99 -99.99  28.00 
1968 10 99.99 -99.99  29.10 
1968 11 99.99 -99.99  27.10 
1968 12 99.99 -99.99  24.50 
1969 01 99.99 -99.99  22.90 
1969 02 99.99 -99.99  25.50 
1969 03 99.99 -99.99  31.10 
1969 04 99.99 -99.99  32.20 
1969 05 99.99 -99.99  32.30 
1969 06 99.99 -99.99  31.10 
1969 07 99.99 -99.99  28.70 
1969 08 99.99 -99.99  26.10 
1969 09 99.99 -99.99  27.90 
1969 10 99.99 -99.99  29.10 
1969 11 99.99 -99.99  26.70 
1969 12 99.99 -99.99  25.90 
1970 01 99.99 -99.99  23.50 
1970 02 99.99 -99.99  25.80 
1970 03 99.99 -99.99  28.30 
1970 04 99.99 -99.99  31.20 
1970 05 99.99 -99.99  32.00 
1970 06 99.99 -99.99  31.30 
1970 07 99.99 -99.99  28.00 
1970 08 99.99 -99.99  26.90 
1970 09 99.99 -99.99  27.50 
1970 10 99.99 -99.99  28.30 
1970 11 99.99 -99.99  26.90 
1970 12 99.99 -99.99  22.20 
