1958 5.0 3.7 -999.0 3.6 -999.0 2.6 3.3 3.8 5.6 4.2 3.9 3.6 1959 4.8 4.0 4.4 4.3 4.2 4.2 3.2 4.0 4.4 4.7 4.5 3.0 1960 2.3 3.4 4.1 1.8 1.8 2.4 2.1 1.9 4.4 2.0 2.8 3.0 1961 2.4 2.8 2.8 2.5 4.1 4.3 4.7 4.7 5.4 5.2 3.1 2.6 1962 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 1963 -999.0 4.2 2.0 1.6 1.2 1.2 2.3 3.1 4.4 3.1 3.4 2.0 1964 2.6 2.3 3.7 3.4 4.4 4.1 5.3 5.7 5.4 4.0 3.4 2.8 1965 2.8 3.8 1.9 1.6 1.2 1.8 1.5 2.7 2.6 3.3 3.4 2.4 1966 3.6 3.1 4.0 3.1 1.6 2.4 1.8 2.5 2.2 6.3 3.0 3.2 1967 4.5 4.4 4.8 3.8 3.2 3.4 4.4 3.4 5.3 5.2 3.2 3.4 1968 3.6 5.0 3.3 2.2 2.2 3.3 2.8 3.2 3.0 4.6 0.9 2.1 1969 3.7 3.9 3.6 4.4 3.2 1.4 1.8 5.6 4.7 6.7 3.1 4.2 1970 4.8 4.6 2.5 3.0 1.5 2.4 1.7 1.4 3.6 3.9 3.5 2.5 1971 5.0 3.9 4.8 8.4 10.0 10.0 10.0 9.6 6.0 5.0 4.3 4.9 1972 4.0 3.7 3.8 3.8 5.0 3.0 2.7 5.2 4.5 4.2 3.2 3.2 1973 3.2 4.2 4.0 4.2 2.8 3.0 3.8 3.5 5.5 4.7 3.9 3.6 1974 5.0 2.3 3.7 3.6 2.7 4.0 2.7 2.3 5.0 5.1 2.0 2.5 1975 3.3 4.2 3.5 3.2 3.8 2.0 2.8 1.9 2.4 6.1 4.5 3.7 1976 3.8 3.3 2.1 4.2 4.4 4.6 4.2 4.0 4.1 2.7 3.3 4.9 1977 5.0 2.5 4.4 2.4 3.3 3.3 1.9 2.3 3.3 4.2 3.9 1.4 1978 4.3 3.0 2.0 2.6 2.9 2.3 2.4 2.5 2.6 4.4 2.6 2.2 1979 3.8 3.2 3.2 3.6 1.3 2.7 1.6 4.1 3.6 2.6 2.5 1.4 1980 3.5 3.5 3.8 3.8 5.3 5.0 5.6 5.7 4.9 4.7 4.0 4.8 1981 5.0 4.0 4.2 3.4 3.4 4.2 4.1 4.4 4.2 4.7 3.0 5.3 1982 4.4 3.7 3.8 3.2 3.2 3.6 3.5 4.0 4.1 4.5 3.1 4.1 1983 3.8 3.5 3.3 3.1 3.0 3.0 2.9 3.5 4.1 4.3 3.2 3.0 1984 3.4 3.4 4.6 3.4 4.2 2.3 4.2 3.9 4.4 5.7 3.5 4.0 1985 5.3 4.5 5.2 4.9 3.9 3.3 4.1 5.2 4.2 5.4 3.9 4.3 1986 7.6 6.1 6.7 7.8 9.7 7.8 7.1 7.3 7.3 6.3 3.8 4.2 1987 5.1 4.1 5.4 5.2 6.1 7.2 6.1 5.7 6.5 7.0 4.5 2.9 1988 3.7 3.7 4.0 1.8 1.2 2.1 1.3 3.0 3.1 3.6 4.1 3.7 1989 2.9 4.8 7.2 5.8 5.2 4.3 5.5 5.3 6.3 4.7 6.0 4.5 1990 4.2 3.0 4.3 3.1 3.2 5.3 5.0 -999.0 -999.0 -999.0 -999.0 -999.0 1991 5.0 4.1 3.3 3.2 2.5 5.4 4.0 4.4 3.9 3.6 1.7 2.2 1992 2.1 2.7 2.5 1.5 1.1 0.4 0.5 3.3 1.9 2.2 3.1 3.8 1993 -999.0 2.1 1.4 2.0 0.8 1.0 1.4 1.9 2.6 3.5 3.2 3.3 1994 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 1995 1.3 4.5 3.4 3.3 2.6 2.8 4.5 4.1 5.0 6.4 4.2 3.8 1996 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 1997 1.6 1.4 1.9 2.4 0.8 0.3 0.7 0.5 2.8 1.5 3.3 -999.0 1998 2.2 1.0 0.5 0.8 0.8 0.5 0.7 1.5 1.1 2.1 2.1 2.3 1999 4.8 3.2 4.4 2.1 2.5 3.8 2.5 4.1 3.5 5.5 5.0 4.8 2000 4.7 3.5 4.3 3.6 4.5 1.8 2.5 4.3 4.8 4.1 3.2 2.2 2001 3.5 2.3 4.1 2.2 2.2 1.2 1.7 3.4 3.7 4.2 5.1 3.9 2002 5.5 4.1 1.5 2.4 1.1 0.0 2.0 1.8 2.5 2.0 1.0 1.8 2003 2.2 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 2004 -999.0 -999.0 2.4 2.5 1.7 0.6 1.3 5.4 3.9 3.0 2.3 2.8 2005 4.2 5.4 6.0 5.2 2.1 3.8 2.7 3.5 4.9 5.1 4.1 3.9 2006 1.2 1.0 1.1 3.3 0.8 0.8 0.9 0.8 2.8 4.5 2.9 1.6 2007 2.9 1.2 3.3 3.0 1.7 1.7 2.4 2.1 4.8 4.0 2.9 3.1 2008 4.1 4.2 6.7 6.7 3.9 4.0 5.6 3.9 5.0 5.4 5.6 2.9 2009 4.3 5.4 4.8 4.8 5.1 4.2 4.9 4.1 5.1 4.5 5.7 4.4 2010 4.3 4.3 4.4 3.2 3.7 3.3 4.8 4.1 5.6 6.3 4.3 3.6 2011 4.5 7.2 4.3 6.9 4.0 5.6 6.9 6.5 6.0 6.8 2.8 4.3 2012 4.3 4.6 4.0 3.6 3.4 3.7 2.6 3.7 4.8 4.4 4.8 4.4 2013 2.7 2.5 3.2 3.7 2.2 3.4 3.0 2.1 4.7 2.9 3.0 2.8 2014 5.4 4.9 5.0 5.4 6.6 7.1 5.1 5.9 6.0 6.8 3.8 5.3 2015 3.9 4.4 5.0 4.7 3.9 5.2 4.8 4.2 6.5 6.3 6.1 4.3 2016 2.3 1.2 0.8 0.7 0.4 0.3 0.1 0.8 1.5 0.5 1.0 0.5 2017 1.8 5.1 4.8 5.9 6.4 5.0 5.6 6.0 5.8 6.3 5.2 6.6 2018 5.1 1.9 3.3 2.2 3.6 2.7 2.9 2.5 5.0 6.3 4.2 6.9 2019 4.5 5.3 3.3 3.5 3.3 3.8 3.6 4.5 5.0 3.8 1.8 3.2 2020 2.6 3.3 5.9 3.3 2.9 4.0 5.1 3.9 5.3 4.2 4.9 5.1 2021 5.4 2.6 4.9 5.5 3.5 3.6 3.7 5.1 4.0 3.9 4.5 3.6 2022 3.7 3.4 3.4 4.1 4.7 4.9 4.8 4.7 3.1 3.3 2.6 2.2 2023 2.9 2.4 3.8 3.9 3.0 3.8 3.8 2.6 4.5 3.2 3.6 6.0