Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1957 | - | -3.6( 67) | -5.8(100) | -9.6(100) | -14.6(100) | -12.7(100) | -17.9(100) | -17.9(100) | -21.5(100) | -13.6(100) | -9.0(100) | -3.6(100) |
1958 | -1.5(100) | -4.8( 39) | - | - | - | - | - | - | - | - | - | - |
1959 | -1.3( 48) | -6.2(100) | -6.3(100) | -10.1(100) | -14.3(100) | -13.4(100) | -16.4(100) | -19.2(100) | -22.7(100) | -14.2(100) | -11.2(100) | -4.7(100) |
1960 | -2.4(100) | -6.5(100) | -7.9(100) | -9.7(100) | -15.4(100) | -19.8(100) | -19.1(100) | -18.9(100) | -23.3(100) | -15.5(100) | -10.4(100) | -4.5(100) |
1961 | -4.9(100) | -4.4(100) | -8.4(100) | -12.0(100) | -15.1(100) | -14.2(100) | -19.8(100) | -19.1(100) | -16.4(100) | -12.0(100) | -7.8(100) | -5.4(100) |
1962 | -4.2(100) | -3.1( 25) | - | - | - | - | - | - | - | - | - | - |
1963 | - | - | - | - | - | - | - | - | - | - | - | - |
1964 | - | - | - | - | - | - | - | - | - | - | - | - |
1965 | - | - | - | - | - | - | - | - | - | - | - | - |
1966 | - | -6.1(100) | -7.1(100) | -11.1(100) | -12.7(100) | -17.6(100) | -19.3(100) | -20.8(100) | -17.2(100) | -17.4(100) | -7.9(100) | -3.4(100) |
1967 | -2.3(100) | -6.2(100) | -8.5(100) | -9.7(100) | -12.2(100) | -14.4(100) | -16.5(100) | -18.3(100) | -20.2(100) | -13.9(100) | -7.9(100) | -3.4(100) |
1968 | -3.4(100) | -4.7(100) | -5.4(100) | -9.4(100) | -11.8(100) | -15.3(100) | -19.5(100) | -16.8(100) | -19.9(100) | -14.8(100) | -8.6(100) | -4.5(100) |
1969 | -1.7(100) | -2.8(100) | -5.1(100) | -8.6(100) | -11.2(100) | -11.7(100) | -17.6(100) | -22.1(100) | -20.2(100) | -14.9(100) | -8.2(100) | -3.4(100) |
1970 | -3.0(100) | -5.1(100) | -6.6(100) | -9.0(100) | -15.4(100) | -16.4(100) | -18.0(100) | -20.6(100) | -22.0(100) | -12.9(100) | -8.3(100) | -3.4(100) |
1971 | -2.3(100) | -3.2(100) | -8.0(100) | -11.3(100) | -16.8(100) | -18.5(100) | -18.9(100) | -20.7(100) | -17.0(100) | -13.7(100) | -9.2(100) | -3.5(100) |
1972 | -2.3(100) | -4.3(100) | -8.6(100) | -10.0(100) | -15.7(100) | -17.9(100) | -20.1(100) | -15.7(100) | -14.5(100) | -14.9(100) | -8.3(100) | -4.4(100) |
1973 | -2.8(100) | -5.2(100) | -8.1(100) | -9.2(100) | -11.7(100) | -14.7(100) | -20.5(100) | -22.7(100) | -18.1(100) | -13.2(100) | -9.1(100) | -4.5(100) |
1974 | -3.6(100) | -4.4(100) | -9.5(100) | -10.8(100) | -12.2(100) | -16.5(100) | -16.4(100) | -17.9(100) | -18.1(100) | -15.5(100) | -8.7(100) | -3.2(100) |
1975 | -2.8(100) | -4.3(100) | -6.7(100) | -11.6(100) | -14.7(100) | -15.5(100) | -20.7(100) | -22.5(100) | -19.6(100) | -15.1(100) | -9.2(100) | -4.9(100) |
1976 | -4.0(100) | -5.5(100) | -7.5(100) | -11.4(100) | -15.3(100) | -19.6(100) | -21.3(100) | -23.3(100) | -21.7(100) | -18.2(100) | -9.0(100) | -2.5(100) |
1977 | -1.4(100) | -5.7(100) | -6.9(100) | -11.6(100) | -12.0(100) | -16.2(100) | -13.4(100) | -15.7(100) | -19.2(100) | -16.5(100) | -9.5(100) | -4.0(100) |
1978 | -4.0(100) | -5.2(100) | -10.1(100) | -11.2(100) | -11.7(100) | -17.1(100) | -14.7(100) | -21.2(100) | -15.8(100) | -14.9(100) | -9.6(100) | -4.0(100) |
1979 | -2.6(100) | -4.8(100) | -7.4(100) | -9.7(100) | -13.8(100) | -18.7(100) | -20.5(100) | -19.1(100) | -19.7(100) | -15.9(100) | -6.7(100) | -3.8(100) |
1980 | -0.7(100) | -4.3(100) | -4.6(100) | -6.3(100) | -9.7(100) | -11.9(100) | -13.5(100) | -17.3(100) | -16.5(100) | -14.2(100) | -6.8(100) | -2.6(100) |
1981 | -3.5(100) | -3.6(100) | -5.5(100) | -8.8(100) | -11.6(100) | -14.7(100) | -14.2(100) | -16.4(100) | -18.7(100) | -17.0(100) | -8.7(100) | -3.4(100) |
1982 | -3.6(100) | -5.7(100) | -6.8(100) | -9.3(100) | -13.1(100) | -14.6(100) | -17.4(100) | -22.3(100) | -21.2(100) | -16.5(100) | -8.1(100) | -2.8(100) |
1983 | -2.4(100) | -4.3(100) | -8.0(100) | -11.0(100) | -12.3(100) | -13.7(100) | -16.0(100) | -19.6(100) | -14.4(100) | -13.2(100) | -10.3(100) | -6.1(100) |
1984 | -2.4(100) | -4.4(100) | -6.6(100) | -9.5(100) | -11.6(100) | -18.7(100) | -22.0(100) | -19.5(100) | -16.9(100) | -16.3(100) | -9.6(100) | -3.1(100) |
1985 | -1.9(100) | -3.3(100) | -7.4(100) | -7.2(100) | -13.1(100) | -14.0(100) | -17.4(100) | -21.9(100) | -17.2(100) | -14.9(100) | -8.6(100) | -4.8(100) |
1986 | -3.8(100) | -2.6(100) | -5.6(100) | -9.9(100) | -13.7(100) | -17.1(100) | -18.2(100) | -18.7(100) | -15.0(100) | -15.1(100) | -7.6(100) | -4.0(100) |
1987 | -2.0(100) | -4.0(100) | -5.4(100) | -7.8(100) | -12.5(100) | -12.4(100) | -18.2(100) | -21.6(100) | -20.4(100) | -14.6(100) | -7.0(100) | -3.7(100) |
1988 | -1.9(100) | -4.5(100) | -5.3(100) | -11.2(100) | -11.4(100) | -14.3(100) | -16.5(100) | -17.8(100) | -17.4(100) | -13.9(100) | -9.4(100) | -4.5(100) |
1989 | -3.0(100) | -3.5(100) | -6.8(100) | -12.0(100) | -20.6(100) | -19.2(100) | -18.3(100) | -20.4(100) | -23.3(100) | -13.3(100) | -8.8(100) | -3.2(100) |
1990 | -2.0(100) | -4.4(100) | -6.5(100) | -11.1(100) | -15.0(100) | -16.6(100) | -11.3(100) | -21.3(100) | -24.4(100) | -12.4(100) | -9.0(100) | -3.2(100) |
1991 | -2.3(100) | -3.2(100) | -7.3(100) | -11.6(100) | -11.3(100) | -14.7(100) | -15.1(100) | -17.4(100) | -17.2(100) | -17.5(100) | -9.3(100) | -1.8(100) |
1992 | -2.0(100) | -4.3(100) | -6.2(100) | -8.8(100) | -12.3(100) | -12.6(100) | -15.6(100) | -17.9(100) | -21.2(100) | -15.9(100) | -8.2(100) | -4.2(100) |
1993 | -1.6(100) | -4.6(100) | -7.7(100) | -12.9(100) | -16.3(100) | -19.3(100) | -20.7(100) | -20.7(100) | -18.9(100) | -15.1(100) | -9.8(100) | -3.5(100) |
1994 | -3.1(100) | -6.3(100) | -8.0(100) | -10.8(100) | -13.9(100) | -13.5(100) | -14.4(100) | -21.1(100) | -17.7(100) | -14.2(100) | -8.6(100) | -4.3(100) |
1995 | -4.3(100) | -4.1(100) | -9.8( 96) | -9.4(100) | -14.7(100) | -21.0(100) | -14.4(100) | -22.3(100) | -22.2(100) | -13.6(100) | -9.7(100) | -4.6(100) |
1996 | -3.9(100) | -3.5(100) | -8.0(100) | -11.6(100) | -16.1(100) | -16.6(100) | -14.5(100) | -16.2(100) | -11.8(100) | -11.8(100) | -8.1(100) | -3.8(100) |
1997 | -3.3(100) | -4.2(100) | -7.5(100) | -8.3(100) | -15.2(100) | -15.2(100) | -20.5(100) | -18.1(100) | -24.5(100) | -15.0(100) | -9.8(100) | -2.4(100) |
1998 | -2.0(100) | -3.7(100) | -4.5(100) | -10.3(100) | -12.0(100) | -14.0(100) | -16.4(100) | -22.3(100) | -17.0(100) | -15.1(100) | -8.4(100) | -4.7(100) |
1999 | -2.8(100) | -5.3(100) | -8.0(100) | -11.5(100) | -12.8(100) | -13.8(100) | -21.3(100) | -21.6(100) | -20.0(100) | -16.2(100) | -9.7(100) | -5.6(100) |
2000 | -4.5(100) | -5.7(100) | -13.2(100) | -11.5(100) | -15.7(100) | -11.9(100) | -19.0(100) | -17.3(100) | -18.4(100) | -13.9(100) | -7.6(100) | -3.6(100) |
2001 | -3.0(100) | -3.6(100) | -7.4(100) | -11.9(100) | -14.0(100) | -17.8(100) | -18.2(100) | -20.7(100) | -19.5(100) | -16.3(100) | -9.3(100) | -3.9(100) |
2002 | -4.0(100) | -4.7(100) | -7.7(100) | -10.5(100) | -10.0(100) | -14.2(100) | -13.4(100) | -17.9(100) | -17.4(100) | -12.5(100) | -9.8(100) | -4.1(100) |
2003 | -2.3(100) | -4.2(100) | -5.4(100) | -7.8(100) | -12.8(100) | -12.3(100) | -16.9(100) | -16.9(100) | -15.7(100) | -14.4(100) | -7.4(100) | -3.0(100) |
2004 | -1.3(100) | -3.0(100) | -5.4(100) | -8.6(100) | -12.8(100) | -12.3(100) | -20.5(100) | -19.9(100) | -21.1(100) | -12.7(100) | -10.2(100) | -2.4(100) |
2005 | -2.9(100) | -2.6(100) | -6.5(100) | -10.8(100) | -11.2(100) | -14.2(100) | -14.4(100) | -16.7(100) | -18.3(100) | -15.5(100) | -11.8(100) | -3.4(100) |
2006 | -3.4(100) | -5.7(100) | -7.1(100) | -9.9(100) | -10.7(100) | -16.1(100) | -24.3(100) | -17.3(100) | -19.7(100) | -17.3(100) | -9.7(100) | -4.2(100) |
2007 | -2.4(100) | -4.5(100) | -8.4(100) | -10.8(100) | -12.2(100) | -12.9(100) | -16.2(100) | -16.0(100) | -20.1(100) | -12.0(100) | -7.2(100) | -3.3(100) |
2008 | -3.8(100) | -5.7(100) | -8.3(100) | -9.4(100) | -15.1(100) | -20.4(100) | -14.9(100) | -21.9(100) | -15.4(100) | -19.2(100) | -9.5(100) | -3.1(100) |
2009 | -2.8(100) | -4.5(100) | -6.5(100) | -12.6(100) | -14.9(100) | -11.6(100) | -16.3(100) | -20.2(100) | -17.4(100) | -14.5(100) | -8.7(100) | -3.6(100) |
2010 | -1.4(100) | -2.3(100) | -7.9(100) | -11.9(100) | -15.2(100) | -18.0(100) | -21.3(100) | -23.3(100) | -19.1(100) | -14.6(100) | -8.4(100) | -4.1(100) |
2011 | -1.1(100) | -5.4(100) | -10.0(100) | -10.6(100) | -13.9(100) | -11.4(100) | -16.8(100) | -17.5(100) | -18.9(100) | -17.9(100) | -7.7(100) | -5.0(100) |
2012 | -3.4(100) | -5.8(100) | -8.2(100) | -13.6(100) | -14.9(100) | -17.3(100) | -19.0(100) | -17.5(100) | -23.9(100) | -13.1(100) | -7.0(100) | -2.6(100) |
2013 | -1.6(100) | -3.7(100) | -5.8(100) | -11.6(100) | -17.7(100) | -14.7(100) | -18.9(100) | -16.6(100) | -15.9(100) | -14.0(100) | -5.7(100) | -2.9(100) |
2014 | -2.8(100) | -3.9(100) | -7.3(100) | -10.7(100) | -15.5(100) | -15.4(100) | -19.3(100) | -21.9(100) | -17.6(100) | -18.4(100) | -8.5(100) | -3.3(100) |
2015 | -4.1(100) | -4.9(100) | -7.7(100) | -12.2(100) | -12.8(100) | -18.7(100) | -18.2(100) | -18.5(100) | -22.4(100) | -14.0(100) | -8.4(100) | -4.0(100) |
2016 | -2.7(100) | -3.6(100) | -8.4(100) | -10.2(100) | -12.7(100) | -14.3(100) | -17.8(100) | -14.4(100) | -19.6(100) | -10.4(100) | -6.7(100) | -3.3(100) |
2017 | -2.3(100) | -4.1(100) | -6.0(100) | -9.6(100) | -10.2(100) | -18.4(100) | -15.4(100) | -21.5(100) | -18.3(100) | -14.0(100) | -6.8( 96) | -3.2(100) |
2018 | -2.1(100) | -2.4(100) | -6.3(100) | -8.1(100) | -15.7(100) | -13.0(100) | -18.1(100) | -16.3(100) | -20.3(100) | -17.6(100) | -8.1(100) | -3.6(100) |
2019 | -2.8(100) | -3.3(100) | -7.5(100) | -10.5(100) | -12.5(100) | -11.7(100) | -18.7(100) | -17.7(100) | -20.1(100) | -9.3(100) | -8.4(100) | -2.1(100) |
2020 | -2.3(100) | -4.9(100) | -7.2(100) | -10.3(100) | -11.0(100) | -16.1(100) | -18.7(100) | -18.5(100) | -18.7(100) | -14.1(100) | -6.4(100) | -5.7(100) |
2021 | -3.9(100) | -5.7(100) | -7.6(100) | -10.9(100) | -12.4(100) | -17.1(100) | -18.2(100) | -20.3(100) | -16.3(100) | -13.0(100) | -7.9(100) | -3.8(100) |
2022 | -2.6(100) | -4.7(100) | -5.9(100) | -10.9(100) | -12.6(100) | -12.7(100) | -18.4(100) | -15.5(100) | -20.4(100) | -12.5(100) | -8.3(100) | -4.0(100) |
2023 | -3.3(100) | -4.2(100) | -6.7(100) | -9.7(100) | -10.2(100) | -13.2(100) | -15.6(100) | -14.6(100) | -17.0(100) | -14.9(100) | -10.0( 96) | -3.6(100) |
2024 | -3.6(100) | -3.8(100) | -6.6(100) | - | - | - | - | - | - | - | - | - |