Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1980 | - | - | - | -7.0(100) | -8.1(100) | -19.1(100) | -10.7(100) | -13.0(100) | -16.3(100) | -11.3(100) | -8.3(100) | -3.2(100) |
1981 | -2.8(100) | -6.0(100) | -7.5(100) | -14.2(100) | -16.2(100) | -17.8(100) | -18.3(100) | -25.1(100) | -19.3(100) | -11.6(100) | -8.5(100) | -2.7(100) |
1982 | 0.0(100) | -4.7(100) | -10.4(100) | -21.3(100) | -17.7(100) | -16.4(100) | -18.2(100) | -17.8(100) | -18.2(100) | -14.1(100) | -6.6(100) | -1.5(100) |
1983 | -2.8(100) | -6.2(100) | -7.7(100) | -9.8(100) | -10.0(100) | -20.3(100) | -21.0(100) | -23.3(100) | -16.3(100) | -15.2(100) | -8.4(100) | -2.5(100) |
1984 | -1.5(100) | -4.6(100) | -6.9(100) | -12.2(100) | -14.8(100) | -13.3(100) | -27.7(100) | -26.0(100) | -22.8(100) | -12.0(100) | -6.8(100) | -0.7(100) |
1985 | -1.2(100) | -6.8(100) | -9.0(100) | -11.9(100) | -12.8(100) | -23.2(100) | -27.2(100) | -22.6(100) | -19.4(100) | -15.6(100) | -6.7(100) | -3.3(100) |
1986 | -1.9(100) | -4.1(100) | -9.5(100) | -14.7(100) | -12.5(100) | -18.4(100) | -21.8(100) | -23.9(100) | -25.0(100) | -14.7(100) | -8.8(100) | -3.3(100) |
1987 | -0.9(100) | -5.2(100) | -15.9(100) | -13.9(100) | -13.3(100) | -15.3(100) | -15.4(100) | -18.8(100) | -17.3(100) | -13.9(100) | -9.7(100) | -1.2(100) |
1988 | -2.3(100) | -5.2(100) | -10.9(100) | -9.5(100) | -12.6(100) | -14.0(100) | -14.9(100) | -14.2(100) | -15.1(100) | -12.1(100) | -6.2(100) | -2.6(100) |
1989 | -1.0(100) | -4.1(100) | -7.5(100) | -8.6(100) | -20.8(100) | -19.4(100) | -20.9(100) | -21.4(100) | -22.0(100) | -12.8(100) | -7.1(100) | -2.2(100) |
1990 | -0.9(100) | -0.7(100) | - | - | - | - | - | - | - | - | - | - |
1991 | - | - | - | - | - | - | - | - | - | - | - | - |
1992 | - | - | - | - | - | - | - | - | - | - | - | - |
1993 | - | - | - | - | - | - | - | - | - | - | - | - |
1994 | - | - | - | - | - | - | - | - | - | - | - | - |
1995 | - | - | - | - | - | - | - | - | - | - | - | - |
1996 | - | - | - | - | - | - | - | - | - | - | - | - |
1997 | - | - | - | - | - | - | - | - | - | - | - | - |
1998 | - | - | - | - | - | - | - | - | - | - | - | - |
1999 | - | - | - | - | - | - | - | - | - | - | - | - |
2000 | - | - | - | - | - | - | - | - | - | - | - | - |
2001 | - | - | - | - | - | - | - | - | - | - | - | - |
2002 | - | - | - | - | - | - | - | - | - | - | - | - |
2003 | - | - | - | - | - | - | - | - | - | - | - | - |
2004 | - | - | - | - | - | - | - | - | - | - | - | - |
2005 | - | - | - | - | - | - | - | - | - | - | - | - |
2006 | - | - | - | - | - | - | - | - | - | - | - | - |
2007 | - | - | - | - | - | - | - | - | - | - | - | - |
2008 | - | - | - | - | - | - | - | - | - | - | - | - |
2009 | - | - | - | - | - | - | - | - | - | - | - | - |