time 0 1955 42.0 1956 38.0 1957 36.0 1958 28.0 1959 45.0 1960 27.0 1961 37.0 1962 40.0 1963 41.0 1964 42.0 1965 33.0 1966 37.0 1967 49.0 1968 33.0 1969 41.0 1970 37.0 1971 71.0 1972 48.0 1973 36.0 1974 41.0 1975 34.0 1976 55.0 1977 57.0 1978 45.0 1979 35.0 1980 24.0 1981 55.0 1982 32.0 1983 36.0 1984 53.0 1985 85.0 1986 61.0 1987 40.0 1988 115.0 1989 36.0 1990 60.0 1991 37.0 1992 28.0 1993 21.0 1994 46.0 1995 55.0 1996 52.0 1997 52.0 1998 45.0 1999 32.0 2000 49.0 2001 68.0 2002 49.0 2003 31.0 2004 52.0 2005 43.0 2006 42.0 2007 36.0 2008 33.0 2009 40.0 2010 45.0 2011 45.0 2012 39.0 2013 59.0 2014 39.0 2015 35.0 2016 33.0 2017 35.0 2018 52.0 2019 51.0 2020 38.0 2021 44.0 2022 71.0