Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1955 | - | -12.5 | -19.4 | -23.6 | -32.7 | -28.2 | -30.6 | -22.8 | -35.9 | -18.8 | -8.9 | -5.4 |
1956 | -5.5 | -12.2 | -22.3 | -27.5 | -38.8 | -28.7 | -32.9 | -33.6 | -28.0 | -22.3 | -9.5 | -3.8 |
1957 | -8.0 | -11.3 | -20.4 | -22.0 | -26.6 | -31.7 | -33.2 | -38.6 | -27.7 | -24.8 | -12.8 | -6.2 |
1958 | -8.0 | -16.6 | -23.6 | -29.2 | -33.8 | -32.0 | -33.2 | -33.4 | -28.0 | -20.6 | -13.8 | -10.2 |
1959 | -4.3 | -14.9 | -20.4 | -26.5 | -20.4 | -37.3 | -34.9 | -32.1 | -31.3 | -20.4 | -12.6 | -4.8 |
1960 | -8.1 | -14.4 | -26.2 | -24.6 | -31.7 | -33.6 | -30.7 | -29.5 | -34.0 | -20.3 | -12.8 | -6.8 |
1961 | -7.7 | -12.2 | -21.7 | -32.5 | -21.8 | -32.9 | -37.6 | -37.2 | -33.7 | -16.2 | -12.1 | -6.7 |
1962 | -7.8 | -13.4 | -24.3 | -25.9 | -34.7 | -28.1 | -30.8 | -35.3 | -33.6 | -27.7 | -16.9 | -10.5 |
1963 | -6.6 | -17.2 | -20.4 | -26.2 | -25.3 | -33.8 | -28.4 | -23.0 | -23.4 | -26.7 | -17.8 | -6.6 |
1964 | -6.2 | -12.9 | -23.1 | -33.6 | -37.9 | -23.9 | -35.0 | -38.4 | -37.2 | -29.1 | -15.3 | -6.4 |
1965 | -4.3 | -10.8 | -22.0 | -30.1 | -29.8 | -31.7 | -34.2 | -32.7 | -28.2 | -20.3 | -12.5 | -6.6 |
1966 | -6.5 | -14.3 | -12.8 | -25.9 | -30.6 | -29.5 | -26.4 | -36.7 | -34.3 | -25.3 | -14.5 | -4.7 |
1967 | -3.3 | -10.6 | -21.6 | -22.9 | -31.6 | -37.1 | -34.6 | -35.4 | -30.3 | -24.0 | -13.4 | -6.3 |
1968 | -7.7 | -11.9 | -18.3 | -29.0 | -25.2 | -24.4 | -33.2 | -33.6 | -31.4 | -18.6 | -11.0 | -5.7 |
1969 | -4.3 | -15.2 | -26.4 | -20.9 | -25.7 | -27.2 | -36.6 | -27.5 | -24.1 | -16.7 | -12.6 | -4.0 |
1970 | -6.0 | -10.5 | -24.2 | -26.4 | -30.4 | -35.4 | -35.1 | -35.4 | -20.4 | -20.9 | -11.9 | -4.4 |
1971 | -5.5 | -17.3 | -21.3 | -23.1 | -32.7 | -38.5 | -35.5 | -27.0 | -36.5 | -24.4 | -13.1 | -4.3 |
1972 | -6.6 | -11.4 | -19.2 | -28.0 | -29.0 | -34.5 | -36.5 | -32.2 | -30.3 | -24.8 | -12.7 | -4.3 |
1973 | -3.3 | -16.3 | -18.2 | -24.7 | -28.3 | -34.8 | -37.1 | -39.3 | -33.9 | -17.6 | -10.7 | -7.3 |
1974 | -5.5 | -14.0 | -24.2 | -28.2 | -31.5 | -35.9 | -33.5 | -29.2 | -31.1 | -24.7 | -11.6 | -5.4 |
1975 | -7.3 | -12.6 | -16.2 | -29.4 | -24.2 | -32.3 | -32.7 | -43.0 | -31.5 | -15.9 | -11.7 | -4.7 |
1976 | -7.2 | -9.1 | -25.0 | -29.2 | -24.7 | -32.7 | -30.6 | -29.7 | -30.7 | -19.8 | -11.1 | -5.4 |
1977 | -5.1 | -10.7 | -23.8 | -25.8 | -16.6 | -28.2 | -33.8 | -30.5 | -35.2 | -23.5 | -12.9 | -8.8 |
1978 | -7.5 | -12.6 | -20.5 | -18.0 | -26.7 | -31.6 | -37.4 | -29.0 | -31.2 | -20.0 | -13.4 | -6.2 |
1979 | -4.8 | -15.2 | -24.2 | -18.7 | -37.4 | -31.7 | -40.6 | -33.2 | -30.5 | - | - | - |
1980 | - | - | - | - | - | - | - | - | - | - | - | - |
1981 | - | - | - | - | - | - | - | - | - | - | - | - |
1982 | - | - | - | - | - | - | - | - | - | - | - | - |
1983 | - | - | - | - | - | - | - | - | - | - | - | - |
1984 | - | - | - | - | - | - | - | - | - | - | - | - |
1985 | - | - | - | - | - | - | - | - | - | - | - | - |
1986 | - | - | - | - | - | - | - | - | - | - | - | - |
1987 | - | - | - | - | - | - | - | - | - | - | - | - |
1988 | - | - | - | - | - | - | - | - | - | - | - | - |
1989 | - | - | - | - | - | - | - | - | - | - | - | - |
1990 | - | - | - | - | - | - | - | - | - | - | - | - |
1991 | - | - | - | - | - | - | - | - | - | - | - | - |
1992 | - | - | - | - | - | - | - | - | - | - | - | - |
1993 | - | - | - | - | - | - | - | - | - | - | - | - |
1994 | - | - | - | - | - | - | - | - | - | - | - | - |
1995 | - | - | - | - | - | - | - | - | - | - | - | - |
1996 | - | - | - | - | - | - | - | - | - | - | - | - |
1997 | - | - | - | - | - | - | - | - | - | - | - | - |
1998 | - | - | - | - | - | - | - | - | - | - | - | - |
1999 | - | - | - | - | - | - | - | - | - | - | - | - |
2000 | - | - | - | - | - | - | - | - | - | - | - | - |
2001 | - | - | - | - | - | - | - | - | - | - | - | - |
2002 | - | - | - | - | - | - | - | - | - | - | - | - |
2003 | - | - | - | - | - | - | - | - | - | - | - | - |
2004 | - | - | - | - | - | - | - | - | - | - | - | - |
2005 | - | - | - | - | - | - | - | - | - | - | - | - |
2006 | - | - | - | - | - | - | - | - | - | - | - | - |
2007 | - | - | - | - | - | - | - | - | - | - | - | - |
2008 | - | - | - | - | - | - | - | - | - | - | - | - |
2009 | - | - | - | - | - | - | - | - | - | - | - | - |