1961 -999.0 50.0 46.0 56.0 62.0 51.0 50.0 58.0 68.0 64.0 54.0 54.0 1962 49.0 50.0 52.0 48.0 46.0 54.0 58.0 58.0 45.0 48.0 49.0 56.0 1963 66.0 59.0 47.0 48.0 50.0 58.0 44.0 45.0 55.0 46.0 46.0 54.0 1964 56.0 46.0 56.0 43.0 46.0 36.0 43.0 48.0 47.0 50.0 48.0 62.0 1965 53.0 45.0 47.0 46.0 47.0 60.0 46.0 46.0 39.0 49.0 54.0 64.0 1966 58.0 53.0 48.0 51.0 50.0 50.0 58.0 60.0 61.0 49.0 58.0 63.0 1967 62.0 52.0 59.0 44.0 49.0 48.0 60.0 57.0 64.0 62.0 62.0 58.0 1968 61.0 51.0 50.0 50.0 50.0 61.0 46.0 45.0 49.0 44.0 52.0 61.0 1969 56.0 54.0 48.0 47.0 43.0 54.0 45.0 39.0 49.0 46.0 53.0 57.0 1970 55.0 48.0 51.0 45.0 47.0 52.0 45.0 46.0 40.0 42.0 50.0 56.0 1971 56.0 46.0 54.0 48.0 45.0 50.0 44.0 38.0 54.0 44.0 48.0 57.0 1972 64.0 46.0 46.0 50.0 50.0 48.0 38.0 50.0 50.0 50.0 51.0 59.0 1973 50.0 44.0 44.0 40.0 50.0 49.0 65.0 56.0 52.0 49.0 52.0 51.0 1974 64.0 50.0 47.0 48.0 56.0 42.0 49.0 42.0 50.0 44.0 53.0 57.0 1975 66.0 52.0 52.0 52.0 60.0 56.0 47.0 55.0 44.0 54.0 48.0 61.0 1976 61.0 44.0 45.0 44.0 44.0 55.0 48.0 52.0 50.0 44.0 52.0 60.0 1977 56.0 46.0 50.0 52.0 46.0 51.0 56.0 62.0 60.0 64.0 56.0 59.0 1978 54.0 51.0 49.0 45.0 47.0 48.0 44.0 49.0 53.0 55.0 54.0 55.0 1979 55.0 48.0 45.0 48.0 53.0 58.0 57.0 55.0 52.0 62.0 59.0 65.0 1980 60.0 49.0 52.0 46.0 50.0 48.0 59.0 53.0 39.0 38.0 48.0 55.0 1981 57.0 47.0 42.0 44.0 36.0 49.0 61.0 44.0 43.0 52.0 52.0 55.0 1982 58.0 42.0 42.0 41.0 54.0 47.0 45.0 61.0 55.0 56.0 58.0 64.0 1983 55.0 50.0 50.0 54.0 42.0 55.0 60.0 50.0 49.0 62.0 57.0 50.0 1984 51.0 53.0 48.0 43.0 50.0 54.0 52.0 45.0 46.0 54.0 60.0 62.0 1985 56.0 58.0 51.0 52.0 50.0 43.0 60.0 54.0 58.0 52.0 60.0 52.0 1986 53.0 45.0 50.0 50.0 53.0 57.0 47.0 63.0 50.0 55.0 50.0 51.0 1987 52.0 48.0 51.0 51.0 61.0 55.0 49.0 61.0 55.0 61.0 58.0 58.0 1988 59.0 54.0 62.0 58.0 47.0 58.0 50.0 47.0 52.0 52.0 54.0 59.0 1989 55.0 51.0 46.0 48.0 45.0 46.0 43.0 38.0 46.0 45.0 45.0 60.0 1990 61.0 56.0 50.0 50.0 57.0 45.0 48.0 48.0 46.0 47.0 47.0 57.0 1991 58.0 50.0 53.0 42.0 51.0 55.0 52.0 50.0 54.0 56.0 52.0 59.0 1992 57.0 48.0 61.0 58.0 55.0 52.0 60.0 53.0 48.0 52.0 51.0 53.0 1993 59.0 55.0 44.0 50.0 55.0 59.0 60.0 59.0 61.0 60.0 55.0 62.0 1994 60.0 56.0 55.0 58.0 56.0 50.0 56.0 63.0 53.0 59.0 56.0 58.0 1995 57.0 58.0 51.0 58.0 60.0 54.0 59.0 64.0 56.0 53.0 58.0 57.0 1996 54.0 48.0 42.0 46.0 46.0 48.0 58.0 42.0 54.0 49.0 52.0 55.0 1997 53.0 45.0 40.0 42.0 46.0 52.0 47.0 51.0 56.0 47.0 67.0 59.0 1998 51.0 46.0 47.0 38.0 60.0 54.0 55.0 49.0 50.0 49.0 49.0 56.0 1999 53.0 47.0 49.0 47.0 43.0 38.0 40.0 56.0 55.0 44.0 47.0 55.0 2000 51.0 45.0 47.0 44.0 41.0 39.0 39.0 58.0 47.0 49.0 51.0 59.0 2001 55.0 49.0 42.0 42.0 39.0 56.0 54.0 41.0 39.0 52.0 47.0 56.0 2002 56.0 45.0 47.0 54.0 51.0 38.0 46.0 41.0 47.0 40.0 46.0 58.0 2003 53.0 49.0 42.0 45.0 56.0 38.0 45.0 43.0 35.0 42.0 50.0 53.0 2004 58.0 56.0 46.0 42.0 36.0 51.0 39.0 40.0 32.0 43.0 41.0 54.0 2005 51.0 53.0 48.0 45.0 38.0 49.0 52.0 47.0 41.0 45.0 48.0 65.0 2006 56.0 46.0 43.0 39.0 45.0 48.0 37.0 65.0 38.0 50.0 46.0 52.0 2007 55.0 49.0 42.0 40.0 39.0 52.0 35.0 44.0 35.0 46.0 51.0 50.0 2008 53.0 42.0 45.0 46.0 42.0 48.0 54.0 40.0 42.0 43.0 46.0 56.0 2009 56.0 49.0 55.0 55.0 59.0 53.0 43.0 40.0 41.0 53.0 50.0 57.0 2010 56.0 53.0 40.0 39.0 45.0 35.0 43.0 32.0 34.0 39.0 47.0 51.0 2011 56.0 55.0 48.0 47.0 48.0 55.0 49.0 48.0 41.0 46.0 49.0 69.0 2012 54.0 56.0 45.0 41.0 54.0 44.0 52.0 47.0 37.0 42.0 57.0 54.0 2013 57.0 50.0 50.0 41.0 44.0 43.0 39.0 44.0 36.0 38.0 66.0 52.0 2014 54.0 41.0 43.0 33.0 45.0 40.0 32.0 53.0 39.0 38.0 52.0 47.0 2015 56.0 46.0 45.0 33.0 40.0 39.0 41.0 37.0 41.0 45.0 56.0 49.0 2016 51.0 51.0 51.0 43.0 46.0 41.0 36.0 41.0 36.0 51.0 44.0 50.0 2017 52.0 47.0 48.0 47.0 40.0 47.0 45.0 33.0 32.0 33.0 56.0 50.0 2018 57.0 49.0 42.0 38.0 44.0 42.0 41.0 34.0 43.0 46.0 40.0 51.0 2019 57.0 44.0 38.0 40.0 37.0 35.0 41.0 35.0 42.0 48.0 43.0 52.0 2020 55.0 47.0 41.0 40.0 36.0 49.0 48.0 37.0 39.0 39.0 52.0 53.0 2021 51.0 38.0 50.0 44.0 42.0 45.0 41.0 44.0 48.0 39.0 49.0 60.0 2022 65.0 44.0 46.0 41.0 37.0 42.0 44.0 36.0 33.0 41.0 46.0 51.0 2023 49.0 41.0 48.0 44.0 53.0 39.0 37.0 39.0 43.0 50.0 47.0 52.0