Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1963 | - | - | 22.6(100) | 28.2(100) | 25.5(100) | 28.8(100) | 19.9(100) | 27.4(100) | 15.6(100) | 16.1(100) | 12.5(100) | 13.5(100) |
1964 | 11.1(100) | 10.3(100) | 21.1(100) | 27.9(100) | 26.9(100) | 27.7(100) | 19.5(100) | 23.2(100) | 17.1(100) | 16.7(100) | 11.4(100) | 8.1(100) |
1965 | 9.2(100) | 13.3(100) | 21.5(100) | 23.2(100) | 23.8(100) | 23.5(100) | 17.9(100) | 17.8(100) | 17.1(100) | 16.5(100) | 12.8(100) | 7.4(100) |
1966 | 7.6(100) | 11.8(100) | 19.7(100) | 30.9(100) | 29.7(100) | 21.9(100) | 24.0(100) | 16.6(100) | 21.9(100) | 17.0(100) | 12.7(100) | 12.6(100) |
1967 | 6.8(100) | 8.2(100) | 20.5(100) | 25.7(100) | 23.2(100) | 25.5(100) | 21.9(100) | 22.1(100) | 19.6(100) | 14.3(100) | 12.6(100) | 10.4(100) |
1968 | 8.4(100) | 13.5(100) | 25.0(100) | 24.3(100) | 29.6(100) | 23.6(100) | 20.6(100) | 23.1(100) | 17.9(100) | 17.6(100) | 13.7(100) | 9.0(100) |
1969 | 11.5(100) | 13.7(100) | 23.0(100) | 24.2(100) | 26.4(100) | 27.6(100) | 17.2(100) | 18.8(100) | 13.2(100) | 15.2(100) | 14.3(100) | 10.6(100) |
1970 | 9.8(100) | 13.4(100) | 20.1(100) | 28.1(100) | 23.2(100) | 25.4(100) | 24.1(100) | 16.6(100) | 19.1(100) | 21.8(100) | 16.5(100) | 10.3(100) |
1971 | 9.5(100) | 16.6(100) | 23.5(100) | 21.7(100) | 27.7(100) | 24.0(100) | 24.3(100) | 23.4(100) | 21.5(100) | 18.0(100) | 14.2(100) | 7.5(100) |
1972 | 7.2(100) | 12.9(100) | 20.2(100) | 26.8(100) | 25.1(100) | 27.1(100) | 18.4(100) | 16.9(100) | 20.5(100) | 18.3(100) | 13.4(100) | 10.7(100) |
1973 | 6.8(100) | 14.8(100) | 27.3(100) | 29.6(100) | 32.8(100) | 30.8(100) | 22.0(100) | 24.3(100) | 15.0(100) | 16.9(100) | 10.6(100) | 10.8( 97) |
1974 | 4.8( 90) | 12.8(100) | 21.6(100) | 23.3(100) | 31.0(100) | 26.1( 90) | 22.1( 90) | 23.7( 97) | 21.4( 87) | 16.3( 81) | 11.0(100) | 10.1(100) |
1975 | 6.2(100) | 15.8(100) | 24.8(100) | 30.0(100) | 30.1(100) | 20.1(100) | 21.2(100) | 20.4(100) | 15.1(100) | 15.2(100) | 14.8(100) | 8.3(100) |
1976 | 7.3(100) | 14.2(100) | 24.3(100) | 32.4(100) | 27.7(100) | 29.9(100) | 25.8(100) | 18.8(100) | 21.5(100) | 9.6(100) | 15.3(100) | 8.1(100) |
1977 | 7.5(100) | 13.9(100) | 26.8(100) | 30.4(100) | 30.3(100) | 21.7(100) | 27.4(100) | 13.2(100) | 16.4(100) | 16.3(100) | 13.9(100) | 10.4(100) |
1978 | 9.5(100) | 14.5(100) | 24.5(100) | 31.6(100) | 29.4(100) | 26.3(100) | 26.7(100) | 21.1(100) | 21.6(100) | 14.0(100) | 10.5(100) | 8.9(100) |
1979 | 8.7(100) | 16.8(100) | 23.6(100) | 24.2(100) | 29.2(100) | 23.6(100) | 17.9(100) | 19.4(100) | 18.2(100) | 15.6(100) | 15.7(100) | 8.0(100) |
1980 | 17.3(100) | 15.6(100) | 22.0(100) | 29.8(100) | 32.4(100) | 26.7(100) | 26.7(100) | 21.6(100) | 19.9(100) | 17.8(100) | 11.8(100) | 9.8(100) |
1981 | 7.8(100) | 15.5(100) | 17.8(100) | 26.8(100) | 30.9(100) | 27.8(100) | 27.4(100) | 21.2(100) | 14.7(100) | 14.9(100) | 11.8(100) | 14.0(100) |
1982 | 4.6(100) | 13.8(100) | 24.3(100) | 32.7(100) | 33.1(100) | 25.1(100) | 27.5(100) | 20.4( 97) | - | 17.9(100) | 13.8(100) | 9.4(100) |
1983 | 10.4(100) | 17.3(100) | 25.1(100) | 32.3(100) | 33.0(100) | 22.1(100) | 19.0(100) | 22.9(100) | 20.1(100) | 12.7(100) | 10.2(100) | 8.4(100) |
1984 | 9.5(100) | 12.7(100) | 26.1(100) | 30.8(100) | 26.0(100) | 24.9(100) | 25.2(100) | 17.9(100) | 17.4(100) | 12.3(100) | 12.9(100) | 8.1(100) |
1985 | 12.1(100) | 15.2(100) | 23.7(100) | 30.0(100) | 29.4(100) | 20.9(100) | 24.4(100) | 22.4( 94) | 22.0(100) | 15.7( 97) | 13.7( 97) | 15.1(100) |
1986 | 9.9(100) | 16.7(100) | 22.8(100) | 34.5(100) | 28.7(100) | 26.2(100) | 25.5(100) | 24.0(100) | 22.2(100) | 15.0(100) | 16.2(100) | 13.7(100) |
1987 | 10.4(100) | 15.1(100) | 26.5(100) | 26.7(100) | 34.8(100) | 27.6(100) | 27.4(100) | 24.5(100) | 26.5(100) | 16.7(100) | 21.1(100) | 9.6(100) |
1988 | 10.5(100) | 15.4(100) | 23.4(100) | 31.1(100) | 30.8(100) | 29.5(100) | 22.0(100) | 23.0(100) | 21.5(100) | 13.6(100) | 9.5(100) | 7.1(100) |
1989 | 9.4(100) | 15.0(100) | 26.8(100) | 28.3(100) | 22.8(100) | 26.5(100) | 21.3(100) | 19.5(100) | 10.7(100) | 15.5(100) | 17.6( 97) | 12.3( 94) |
1990 | 11.3(100) | 14.4(100) | 22.2(100) | 27.2(100) | 23.1(100) | 31.7(100) | 24.8(100) | 22.5(100) | 19.3(100) | 14.8(100) | 14.0(100) | 13.6(100) |
1991 | 12.0(100) | 18.0(100) | 17.2(100) | 25.0(100) | 31.6(100) | 23.8(100) | 25.4(100) | 26.2(100) | 24.4(100) | 10.3(100) | 13.4(100) | 9.3(100) |
1992 | 9.3(100) | 15.0(100) | 26.7(100) | 27.0(100) | 28.4(100) | 23.8(100) | 25.9(100) | 21.3(100) | 23.7(100) | 17.5(100) | 13.1(100) | 11.8(100) |
1993 | 8.2(100) | 12.1(100) | 25.3(100) | 29.6(100) | 30.5(100) | 27.7(100) | 18.3(100) | 16.4(100) | 18.5(100) | 18.2(100) | 13.4(100) | 13.5(100) |
1994 | 9.0(100) | 13.1(100) | 26.7(100) | 28.0(100) | 28.8(100) | 23.7(100) | 23.5(100) | 20.8(100) | 19.5(100) | 17.8(100) | 13.8(100) | 12.4(100) |
1995 | 10.0(100) | 15.8(100) | 23.2(100) | 24.5(100) | 24.1(100) | 29.6(100) | 27.4(100) | 19.5(100) | 18.1(100) | 22.4(100) | 10.2(100) | 12.1(100) |
1996 | 9.1(100) | 16.0(100) | 20.1(100) | 26.4(100) | 26.5(100) | 22.8(100) | 31.3(100) | 24.6(100) | 22.7(100) | 16.7(100) | 12.6(100) | 9.2(100) |
1997 | 8.4(100) | 15.4(100) | 19.8(100) | 28.3(100) | 26.7(100) | 27.3(100) | 25.7(100) | 21.6(100) | 20.9(100) | 14.7(100) | 12.6(100) | 12.5(100) |
1998 | 10.8(100) | 13.7(100) | 25.9(100) | 26.9(100) | 30.3(100) | 21.1(100) | 20.0(100) | 18.6(100) | 18.1(100) | 10.8(100) | 13.2(100) | 8.5(100) |
1999 | 13.5(100) | 13.9(100) | 21.9(100) | 24.4(100) | 22.7(100) | 22.0( 97) | - | - | - | - | - | - |
2000 | - | - | - | - | - | - | - | - | - | - | - | - |
2001 | - | - | - | - | - | - | - | - | - | - | - | - |
2002 | - | - | - | - | - | - | - | - | - | - | - | - |
2003 | - | - | - | - | - | - | - | - | - | - | - | - |
2004 | - | - | - | - | - | - | - | - | - | - | - | - |
2005 | - | - | - | - | - | - | - | - | - | - | - | - |
2006 | - | - | - | - | - | - | - | - | - | - | - | - |
2007 | - | - | - | - | - | - | - | - | - | - | - | - |
2008 | - | - | - | - | - | - | - | - | - | - | - | - |
2009 | - | - | - | - | - | - | - | - | - | - | - | - |