Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1980 | - | - | - | -7.8(100) | -8.6(100) | -20.0(100) | -10.8(100) | -14.0(100) | -16.8(100) | -12.2(100) | -10.0(100) | -5.1(100) |
1981 | -4.6(100) | -7.9(100) | -7.7(100) | -13.9(100) | -15.9(100) | -18.0(100) | -18.1(100) | -24.9(100) | -19.3(100) | -13.1(100) | -10.8(100) | -3.8(100) |
1982 | -1.5(100) | -6.8(100) | -12.0(100) | -22.2(100) | -18.2(100) | -16.3(100) | -18.9(100) | -17.4(100) | -18.4(100) | -16.5(100) | -8.1(100) | -3.0(100) |
1983 | -4.9(100) | -8.3(100) | -8.7(100) | -9.9(100) | -9.6(100) | -19.3(100) | -21.3(100) | -22.5(100) | -16.3(100) | -16.1(100) | -10.5(100) | -4.5(100) |
1984 | -3.7(100) | -6.2(100) | -7.7(100) | -12.6(100) | -14.8(100) | -13.2(100) | -28.8(100) | -24.8(100) | -22.5(100) | -13.3(100) | -9.0(100) | -2.6(100) |
1985 | -3.2(100) | -8.6(100) | -9.9(100) | -12.5(100) | -13.0(100) | -23.6(100) | -27.1(100) | -21.7(100) | -19.9(100) | -16.6(100) | -8.8(100) | -5.2(100) |
1986 | -4.0(100) | -6.0(100) | -11.0(100) | -14.9(100) | -12.3(100) | -18.5(100) | -22.2(100) | -23.8(100) | -25.1(100) | -15.9(100) | -10.1(100) | -5.1(100) |
1987 | -3.6(100) | -7.4(100) | -16.5(100) | -13.9(100) | -13.2(100) | -15.5(100) | -15.6(100) | -18.3(100) | -17.9(100) | -15.0(100) | -11.8(100) | -3.5(100) |
1988 | -4.0(100) | -7.3(100) | -11.8(100) | -9.7(100) | -13.2(100) | -14.1(100) | -15.1(100) | -13.6(100) | -16.7(100) | -13.3(100) | -8.0(100) | -3.9(100) |
1989 | -2.8(100) | -5.9(100) | -8.3(100) | -8.4(100) | -21.0(100) | -19.1(100) | -20.3(100) | -22.3(100) | -22.8(100) | -14.2(100) | -8.5(100) | -3.7(100) |
1990 | -2.1(100) | -2.9(100) | - | - | - | - | - | - | - | - | - | - |
1991 | - | - | - | - | - | - | - | - | - | - | - | - |
1992 | - | - | - | - | - | - | - | - | - | - | - | - |
1993 | - | - | - | - | - | - | - | - | - | - | - | - |
1994 | - | - | - | - | - | - | - | - | - | - | - | - |
1995 | - | - | - | - | - | - | - | - | - | - | - | - |
1996 | - | - | - | - | - | - | - | - | - | - | - | - |
1997 | - | - | - | - | - | - | - | - | - | - | - | - |
1998 | - | - | - | - | - | - | - | - | - | - | - | - |
1999 | - | - | - | - | - | - | - | - | - | - | - | - |
2000 | - | - | - | - | - | - | - | - | - | - | - | - |
2001 | - | - | - | - | - | - | - | - | - | - | - | - |
2002 | - | - | - | - | - | - | - | - | - | - | - | - |
2003 | - | - | - | - | - | - | - | - | - | - | - | - |
2004 | - | - | - | - | - | - | - | - | - | - | - | - |
2005 | - | - | - | - | - | - | - | - | - | - | - | - |
2006 | - | - | - | - | - | - | - | - | - | - | - | - |
2007 | - | - | - | - | - | - | - | - | - | - | - | - |
2008 | - | - | - | - | - | - | - | - | - | - | - | - |
2009 | - | - | - | - | - | - | - | - | - | - | - | - |