Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1980 | - | - | - | 33.2(100) | 33.4(100) | 27.6(100) | 31.5(100) | 31.4(100) | 19.4(100) | 32.6(100) | 19.0(100) | 15.7(100) |
1981 | 20.3(100) | 19.9(100) | 40.5(100) | 20.4(100) | 26.1(100) | 29.5(100) | 24.1(100) | 9.5(100) | 24.6(100) | 28.4(100) | 25.6(100) | 24.5(100) |
1982 | 16.3(100) | 20.4(100) | 26.8(100) | 16.0(100) | 24.4(100) | 28.4(100) | 29.2(100) | 33.6(100) | 27.3(100) | 19.9(100) | 27.3(100) | 17.8(100) |
1983 | 18.6(100) | 16.5(100) | 36.2(100) | 42.4(100) | 37.9(100) | 26.8(100) | 20.5(100) | 29.2(100) | 20.5(100) | 34.7(100) | 26.5(100) | 21.7(100) |
1984 | 13.2(100) | 23.8(100) | 21.5(100) | 23.9(100) | 31.0(100) | 32.4(100) | 25.5(100) | 18.8(100) | 18.5(100) | 23.8(100) | 17.7(100) | 18.4(100) |
1985 | 19.9(100) | 19.2(100) | 26.4(100) | 25.5(100) | 30.8(100) | 21.6(100) | 16.8(100) | 22.4(100) | 19.5(100) | 26.9(100) | 20.2(100) | 16.7(100) |
1986 | 20.1(100) | 18.0(100) | 23.8(100) | 29.3(100) | 31.7(100) | 20.2(100) | 24.8(100) | 17.4(100) | 18.3(100) | 26.8(100) | 18.8(100) | 26.1(100) |
1987 | 14.5(100) | 17.9(100) | 17.9(100) | 30.6(100) | 28.5(100) | 28.9(100) | 29.6(100) | 25.2(100) | 26.1(100) | 19.4(100) | 16.1(100) | 20.4(100) |
1988 | 20.0(100) | 15.5(100) | 21.5(100) | 36.9(100) | 25.9(100) | 27.4(100) | 27.6(100) | 31.4(100) | 22.6(100) | 26.9(100) | 28.9(100) | 23.1(100) |
1989 | 24.7(100) | 21.0(100) | 26.5(100) | 32.7(100) | 28.8(100) | 24.8(100) | 23.3(100) | 20.8(100) | 26.9(100) | 27.4(100) | 27.5(100) | 24.6(100) |
1990 | 22.7(100) | 20.8(100) | 22.5( 45) | - | - | - | - | - | - | - | - | - |
1991 | - | - | - | - | - | - | - | - | - | - | - | - |
1992 | - | - | - | - | - | - | - | - | - | - | - | - |
1993 | - | - | - | - | - | - | - | - | - | - | - | - |
1994 | - | - | - | - | - | - | - | - | - | - | - | - |
1995 | - | - | - | - | - | - | - | - | - | - | - | - |
1996 | - | - | - | - | - | - | - | - | - | - | - | - |
1997 | - | - | - | - | - | - | - | - | - | - | - | - |
1998 | - | - | - | - | - | - | - | - | - | - | - | - |
1999 | - | - | - | - | - | - | - | - | - | - | - | - |
2000 | - | - | - | - | - | - | - | - | - | - | - | - |
2001 | - | - | - | - | - | - | - | - | - | - | - | - |
2002 | - | - | - | - | - | - | - | - | - | - | - | - |
2003 | - | - | - | - | - | - | - | - | - | - | - | - |
2004 | - | - | - | - | - | - | - | - | - | - | - | - |
2005 | - | - | - | - | - | - | - | - | - | - | - | - |
2006 | - | - | - | - | - | - | - | - | - | - | - | - |
2007 | - | - | - | - | - | - | - | - | - | - | - | - |
2008 | - | - | - | - | - | - | - | - | - | - | - | - |
2009 | - | - | - | - | - | - | - | - | - | - | - | - |