Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1961 | - | 23.4(100) | - | - | - | - | - | 24.4(100) | 22.5(100) | 26.3(100) | 28.1(100) | 18.3(100) |
1962 | 18.1(100) | 20.9(100) | - | - | 15.0(100) | 17.7(100) | 16.2(100) | 15.2(100) | 21.3(100) | 18.7(100) | 11.7(100) | 11.5(100) |
1963 | 11.8(100) | 9.4(100) | 13.3(100) | 14.5(100) | 17.6(100) | 14.0(100) | 17.2(100) | 16.5(100) | 23.9(100) | 12.0(100) | 17.8(100) | 6.3(100) |
1964 | 5.1(100) | 9.1(100) | 13.8(100) | 11.1(100) | 20.0(100) | 14.0(100) | 9.5(100) | 10.1(100) | 18.1(100) | 24.1(100) | 13.5(100) | 9.0(100) |
1965 | 3.3(100) | 7.1(100) | 19.4(100) | 10.5(100) | 12.1(100) | 14.3(100) | 10.5(100) | 11.0(100) | 18.4(100) | 15.7(100) | 14.2(100) | 6.5(100) |
1966 | 5.1(100) | 7.4(100) | 8.6(100) | 14.0(100) | 7.5(100) | 13.5(100) | 12.1(100) | 15.8(100) | 16.4(100) | 17.7(100) | 8.4(100) | 6.2(100) |
1967 | 3.6(100) | 6.9(100) | 14.1(100) | 13.6(100) | 10.2(100) | 15.7(100) | 19.0(100) | 14.4(100) | 17.3(100) | 16.9(100) | 13.1(100) | 8.8(100) |
1968 | 9.3(100) | 9.0(100) | 11.2(100) | 14.1(100) | 9.1(100) | 19.8(100) | 19.0(100) | 17.5(100) | 19.9(100) | 15.6(100) | 9.2(100) | 8.3(100) |
1969 | 5.0(100) | 6.1(100) | 9.8(100) | 15.2(100) | 11.4(100) | 13.2(100) | 9.5(100) | 16.3(100) | 20.6(100) | 15.0(100) | 16.4(100) | 9.9(100) |
1970 | 12.2(100) | 5.4(100) | 7.9(100) | 6.0(100) | 13.6(100) | 19.3(100) | 17.9(100) | 18.5(100) | 23.5(100) | 17.5(100) | 19.0(100) | 8.5(100) |
1971 | 6.0(100) | 6.1(100) | 12.0(100) | 11.4(100) | 9.1(100) | 11.0(100) | 14.5(100) | 12.7(100) | 12.6(100) | 14.7(100) | 8.6(100) | 4.8(100) |
1972 | 7.7(100) | 8.9(100) | 12.0(100) | 10.6(100) | 12.7(100) | 11.4(100) | 11.6(100) | 12.6(100) | 15.1(100) | 12.7(100) | 13.3(100) | 8.8(100) |
1973 | 5.4(100) | 11.4(100) | 16.9(100) | 16.5(100) | 9.7(100) | 10.6(100) | 18.1(100) | 14.1(100) | 17.9(100) | 18.3(100) | 13.0(100) | 6.5(100) |
1974 | 7.1(100) | 19.4(100) | 14.3(100) | 11.2(100) | 18.5(100) | 9.8(100) | 14.8(100) | 10.8(100) | 14.9(100) | 16.2(100) | 8.8(100) | 11.0(100) |
1975 | 11.8(100) | 17.2(100) | 22.1(100) | 22.3(100) | 24.7(100) | 24.4(100) | 17.3(100) | 20.9(100) | 23.0(100) | 21.6(100) | 24.2(100) | 18.2(100) |
1976 | 13.2(100) | 21.7(100) | 24.5(100) | 17.3(100) | 18.5(100) | - | - | - | - | - | - | - |
1977 | - | - | - | - | - | - | - | - | - | - | - | - |
1978 | - | - | - | - | - | - | - | - | - | - | - | - |
1979 | - | - | - | - | - | - | - | - | - | - | - | - |
1980 | - | - | - | - | - | - | - | - | - | - | - | - |
1981 | - | - | - | - | - | - | - | - | - | - | - | - |
1982 | - | - | - | - | - | - | - | - | - | - | - | - |
1983 | - | - | - | - | - | - | - | - | - | - | - | - |
1984 | - | - | - | - | - | - | - | - | - | - | - | - |
1985 | - | - | - | - | - | - | - | - | - | - | - | - |
1986 | - | - | - | - | - | - | - | - | - | - | - | - |
1987 | - | - | - | - | - | - | - | - | - | - | - | - |
1988 | - | - | - | - | - | - | - | - | - | - | - | - |
1989 | - | - | - | - | - | - | - | - | - | - | - | - |
1990 | - | - | - | - | - | - | - | - | - | - | - | - |
1991 | - | - | - | - | - | - | - | - | - | - | - | - |
1992 | - | - | - | - | - | - | - | - | - | - | - | - |
1993 | - | - | - | - | - | - | - | - | - | - | - | - |
1994 | - | - | - | - | - | - | - | - | - | - | - | - |
1995 | - | - | - | - | - | - | - | - | - | - | - | - |
1996 | - | - | - | - | - | - | - | - | - | - | - | - |
1997 | - | - | - | - | - | - | - | - | - | - | - | - |
1998 | - | - | - | - | - | - | - | - | - | - | - | - |
1999 | - | - | - | - | - | - | - | - | - | - | - | - |
2000 | - | - | - | - | - | - | - | - | - | - | - | - |
2001 | - | - | - | - | - | - | - | - | - | - | - | - |
2002 | - | - | - | - | - | - | - | - | - | - | - | - |
2003 | - | - | - | - | - | - | - | - | - | - | - | - |
2004 | - | - | - | - | - | - | - | - | - | - | - | - |
2005 | - | - | - | - | - | - | - | - | - | - | - | - |
2006 | - | - | - | - | - | - | - | - | - | - | - | - |
2007 | - | - | - | - | - | - | - | - | - | - | - | - |
2008 | - | - | - | - | - | - | - | - | - | - | - | - |
2009 | - | - | - | - | - | - | - | - | - | - | - | - |