Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1980 | - | - | - | -7.2(100) | -8.2(100) | -19.4(100) | -10.8(100) | -13.6(100) | -16.7(100) | -11.7(100) | -9.2(100) | -4.2(100) |
1981 | -3.8(100) | -7.1(100) | -7.7(100) | -14.1(100) | -16.2(100) | -18.1(100) | -18.3(100) | -25.1(100) | -19.3(100) | -12.4(100) | -9.6(100) | -3.3(100) |
1982 | -0.7(100) | -5.7(100) | -11.3(100) | -21.9(100) | -18.0(100) | -16.4(100) | -18.5(100) | -17.7(100) | -18.2(100) | -15.4(100) | -7.3(100) | -2.2(100) |
1983 | -3.8(100) | -7.2(100) | -8.3(100) | -9.9(100) | -9.8(100) | -19.9(100) | -21.1(100) | -22.8(100) | -16.6(100) | -15.6(100) | -9.4(100) | -3.5(100) |
1984 | -2.7(100) | -5.4(100) | -7.4(100) | -12.3(100) | -14.8(100) | -13.2(100) | -28.5(100) | -25.2(100) | -22.9(100) | -12.8(100) | -7.8(100) | -1.7(100) |
1985 | -2.2(100) | -7.8(100) | -9.7(100) | -12.4(100) | -13.0(100) | -23.5(100) | -27.2(100) | -22.3(100) | -19.8(100) | -16.2(100) | -7.8(100) | -4.2(100) |
1986 | -3.0(100) | -5.0(100) | -10.4(100) | -14.9(100) | -12.6(100) | -18.5(100) | -21.9(100) | -24.1(100) | -25.4(100) | -15.4(100) | -9.4(100) | -4.2(100) |
1987 | -2.2(100) | -6.4(100) | -16.2(100) | -14.0(100) | -13.1(100) | -15.4(100) | -15.5(100) | -18.3(100) | -17.7(100) | -14.5(100) | -10.7(100) | -2.4(100) |
1988 | -3.2(100) | -6.3(100) | -11.4(100) | -9.5(100) | -12.9(100) | -14.2(100) | -15.0(100) | -13.8(100) | -16.0(100) | -12.7(100) | -7.1(100) | -3.3(100) |
1989 | -2.0(100) | -5.0(100) | -7.8(100) | -8.6(100) | -21.1(100) | -19.3(100) | -20.8(100) | -21.8(100) | -22.5(100) | -13.5(100) | -7.8(100) | -3.0(100) |
1990 | -1.5(100) | -1.9(100) | -10.9( 44) | - | - | - | - | - | - | - | - | - |
1991 | - | - | - | - | - | - | - | - | - | - | - | - |
1992 | - | - | - | - | - | - | - | - | - | - | - | - |
1993 | - | - | - | - | - | - | - | - | - | - | - | - |
1994 | - | - | - | - | - | - | - | - | - | - | - | - |
1995 | - | - | - | - | - | - | - | - | - | - | - | - |
1996 | - | - | - | - | - | - | - | - | - | - | - | - |
1997 | - | - | - | - | - | - | - | - | - | - | - | - |
1998 | - | - | - | - | - | - | - | - | - | - | - | - |
1999 | - | - | - | - | - | - | - | - | - | - | - | - |
2000 | - | - | - | - | - | - | - | - | - | - | - | - |
2001 | - | - | - | - | - | - | - | - | - | - | - | - |
2002 | - | - | - | - | - | - | - | - | - | - | - | - |
2003 | - | - | - | - | - | - | - | - | - | - | - | - |
2004 | - | - | - | - | - | - | - | - | - | - | - | - |
2005 | - | - | - | - | - | - | - | - | - | - | - | - |
2006 | - | - | - | - | - | - | - | - | - | - | - | - |
2007 | - | - | - | - | - | - | - | - | - | - | - | - |
2008 | - | - | - | - | - | - | - | - | - | - | - | - |
2009 | - | - | - | - | - | - | - | - | - | - | - | - |