Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1963 | - | - | 28.3(100) | 28.5(100) | 29.0(100) | 29.0(100) | 20.8(100) | 26.3(100) | 18.4(100) | 18.0(100) | 14.6(100) | 19.5(100) |
1964 | 14.9(100) | 17.5(100) | 22.9(100) | 29.3(100) | 23.3(100) | 27.4(100) | 19.0(100) | 23.2(100) | 17.0(100) | 24.7(100) | 17.4(100) | 12.6(100) |
1965 | 14.2(100) | 19.8(100) | 25.5(100) | 25.5(100) | 24.7(100) | 23.4(100) | 20.0(100) | 18.4(100) | 21.6(100) | 20.1(100) | 17.3(100) | 12.5(100) |
1966 | 12.1(100) | 18.9(100) | 25.2(100) | 33.8(100) | 30.0(100) | 21.4(100) | 23.4(100) | 14.4(100) | 22.2(100) | 22.5(100) | 19.9(100) | 14.3(100) |
1967 | 11.2(100) | 18.0(100) | 22.8(100) | 27.5(100) | 23.2(100) | 24.0(100) | 20.7(100) | 19.1(100) | 18.2(100) | 16.2(100) | 18.0(100) | 14.3(100) |
1968 | 14.4(100) | 23.0(100) | 27.5(100) | 26.5(100) | 29.1(100) | 26.5(100) | 18.8(100) | 20.2(100) | 19.8(100) | 22.1(100) | 16.9(100) | 12.9(100) |
1969 | 14.8(100) | 18.5(100) | 27.9(100) | 24.3(100) | 26.5(100) | 29.1(100) | 19.2(100) | 18.7(100) | 15.3(100) | 21.6(100) | 18.7(100) | 10.9(100) |
1970 | 11.4(100) | 20.0(100) | 22.4(100) | 28.8(100) | 22.6(100) | 25.9(100) | 21.3(100) | 18.0(100) | 21.2(100) | 27.4(100) | 22.9(100) | 16.3(100) |
1971 | 11.7(100) | 21.7(100) | 26.8(100) | 21.8(100) | 27.3(100) | 25.5(100) | 26.5(100) | 23.5(100) | 22.1(100) | 22.0(100) | 17.6(100) | 12.4(100) |
1972 | 9.4(100) | 18.4(100) | 25.8(100) | 24.5(100) | 24.8(100) | 30.7(100) | 17.5(100) | 22.8(100) | 20.9(100) | 19.6(100) | 18.1(100) | 11.7(100) |
1973 | 11.3(100) | 18.9(100) | 28.2(100) | 31.0(100) | 30.4(100) | 29.8(100) | 24.6(100) | 22.4(100) | 16.1(100) | 21.9(100) | 16.2(100) | 14.7(100) |
1974 | 8.1( 97) | 18.1(100) | 25.7(100) | 26.0( 97) | 29.4(100) | 26.4( 97) | 23.1( 94) | 24.6( 90) | 20.8( 97) | 20.7( 87) | 17.5(100) | 13.0(100) |
1975 | 11.9(100) | 21.1(100) | 28.7(100) | 28.6(100) | 29.8(100) | 21.8(100) | 21.8(100) | 22.0(100) | 18.4(100) | 18.2(100) | 19.5(100) | 9.9(100) |
1976 | 12.5(100) | 17.9(100) | 27.7(100) | 30.4(100) | 26.0(100) | 29.9(100) | 25.3(100) | 16.3(100) | 22.2(100) | 16.9(100) | 19.4(100) | 12.7(100) |
1977 | 11.8(100) | 20.1(100) | 29.5(100) | 31.5(100) | 31.8(100) | 19.1(100) | 28.4(100) | 13.3(100) | 16.4(100) | 20.0(100) | 18.7(100) | 13.9(100) |
1978 | 12.8(100) | 22.1(100) | 26.6(100) | 30.5(100) | 30.5(100) | 24.7(100) | 25.9(100) | 23.7(100) | 23.7(100) | 16.7(100) | 15.7(100) | 8.9(100) |
1979 | 14.0(100) | 22.3(100) | 27.4(100) | 27.3(100) | 30.3(100) | 26.1(100) | 17.8(100) | 22.6(100) | 23.6(100) | 17.9(100) | 19.5(100) | 11.7(100) |
1980 | 17.7(100) | 22.9(100) | 27.3(100) | 28.5(100) | 33.5(100) | 27.4(100) | 26.1(100) | 20.6(100) | 22.1(100) | 21.6(100) | 18.5(100) | 13.2(100) |
1981 | 12.4(100) | 20.3(100) | 21.4(100) | 27.4(100) | 30.9(100) | 28.5(100) | 24.9(100) | 24.2(100) | 17.5(100) | 19.2(100) | 16.2(100) | 15.7(100) |
1982 | 9.8(100) | 21.2(100) | 25.7(100) | 33.9(100) | 33.3(100) | 25.2(100) | 28.8(100) | 21.5(100) | 24.6(100) | 23.5(100) | 18.0(100) | 13.4(100) |
1983 | 12.6(100) | 24.5(100) | 29.5(100) | 35.0(100) | 30.5(100) | 24.2(100) | 19.6(100) | 26.2(100) | 19.3(100) | 17.1(100) | 16.5(100) | 10.2(100) |
1984 | 13.0(100) | 22.1(100) | 26.5(100) | 29.8(100) | 25.0(100) | 21.8(100) | 24.5(100) | 16.5(100) | 19.5(100) | 18.7(100) | 17.5(100) | 13.6(100) |
1985 | 14.7(100) | 19.6(100) | 26.6(100) | 27.9(100) | 33.2(100) | 20.3(100) | 26.3(100) | 24.0(100) | 23.6(100) | 21.5(100) | 15.8(100) | 19.1( 97) |
1986 | 15.3(100) | 20.2(100) | 26.7(100) | 35.3(100) | 30.6(100) | 26.3(100) | 24.7(100) | 26.8(100) | 24.1(100) | 16.7(100) | 20.5(100) | 15.9(100) |
1987 | 14.9(100) | 20.6(100) | 29.2(100) | 28.2(100) | 32.5(100) | 28.4(100) | 26.2(100) | 22.5(100) | 27.3(100) | 20.0(100) | 25.1(100) | 12.2(100) |
1988 | 14.7(100) | 21.1(100) | 29.1(100) | 32.1(100) | 30.5(100) | 29.2(100) | 25.3(100) | 23.3(100) | 21.5(100) | 16.5(100) | 14.8(100) | 9.6(100) |
1989 | 14.5(100) | 19.6(100) | 30.3(100) | 29.4(100) | 21.6(100) | 27.2(100) | 19.6(100) | 21.2(100) | 13.2(100) | 17.1(100) | 22.0(100) | 14.6( 97) |
1990 | 13.4(100) | 19.8(100) | 27.1(100) | 29.3(100) | 23.5(100) | 31.7(100) | 23.4(100) | 22.0(100) | 19.4(100) | 21.0(100) | 17.2(100) | 14.5(100) |
1991 | 14.5(100) | 23.3(100) | 20.4(100) | 23.8(100) | 30.4(100) | 25.5(100) | 23.7(100) | 24.4(100) | 22.1(100) | 17.3(100) | 16.1(100) | 11.2(100) |
1992 | 13.5(100) | 20.3(100) | 29.8(100) | 26.4(100) | 26.0(100) | 25.9(100) | 23.9(100) | 21.4(100) | 21.1(100) | 20.9(100) | 16.4(100) | 13.2(100) |
1993 | 13.8(100) | 18.6(100) | 31.9(100) | 30.2(100) | 27.2(100) | 28.3(100) | 18.2(100) | 19.9(100) | 24.8(100) | 21.3(100) | 18.4(100) | 15.5(100) |
1994 | 15.0(100) | 23.3(100) | 30.4(100) | 30.3(100) | 29.5(100) | 26.0(100) | 21.8(100) | 18.1(100) | 25.0(100) | 19.5(100) | 17.1(100) | 14.9(100) |
1995 | 13.1(100) | 19.8(100) | 28.9(100) | 28.9(100) | 27.8(100) | 26.9(100) | 25.2(100) | 23.9(100) | 20.9(100) | 26.7(100) | 15.4(100) | 13.9(100) |
1996 | 13.3(100) | 21.6(100) | 25.7(100) | 31.6(100) | 27.9(100) | 22.9(100) | 31.3(100) | 23.6(100) | 21.8(100) | 17.0(100) | 14.4(100) | 12.4(100) |
1997 | 11.5(100) | 20.7(100) | 24.3(100) | 30.1(100) | 26.5(100) | 27.2(100) | 26.0(100) | 25.8(100) | 23.8(100) | 19.2(100) | 17.2(100) | 14.2(100) |
1998 | 12.8(100) | 18.6(100) | 28.5(100) | 27.8(100) | 29.0(100) | 23.3(100) | 20.6(100) | 20.1(100) | 18.8(100) | 15.3(100) | 16.6(100) | 10.3(100) |
1999 | 15.6(100) | 21.8(100) | 23.1(100) | 24.2(100) | 20.5(100) | 22.9(100) | - | - | - | - | - | - |
2000 | - | - | - | - | - | - | - | - | - | - | - | - |
2001 | - | - | - | - | - | - | - | - | - | - | - | - |
2002 | - | - | - | - | - | - | - | - | - | - | - | - |
2003 | - | - | - | - | - | - | - | - | - | - | - | - |
2004 | - | - | - | - | - | - | - | - | - | - | - | - |
2005 | - | - | - | - | - | - | - | - | - | - | - | - |
2006 | - | - | - | - | - | - | - | - | - | - | - | - |
2007 | - | - | - | - | - | - | - | - | - | - | - | - |
2008 | - | - | - | - | - | - | - | - | - | - | - | - |
2009 | - | - | - | - | - | - | - | - | - | - | - | - |