Year | Value | 2022 | 68,604 | 2021 | 65,433 | 2020 | 63,592 | 2019 | 62,218 | 2018 | 61,392 | 2017 | 60,742 | 2016 | 59,926 | 2015 | 59,174 | 2014 | 58,034 | 2013 | 57,198 | 2012 | 57,988 | 2011 | 60,070 | 2010 | 62,454 | 2009 | 64,579 | 2008 | 66,183 | 2007 | 66,945 | 2006 | 67,251 | 2005 | 67,871 | 2004 | 68,375 | 2003 | 68,296 | 2002 | 68,122 | 2001 | 67,739 | 2000 | 67,501 | 1999 | 67,818 | 1998 | 68,295 | 1997 | 68,407 | 1996 | 67,584 | 1995 | 65,619 | 1994 | 63,215 | 1993 | 60,459 | 1992 | 57,247 | 1991 | 54,627 | 1990 | 52,539 | 1989 | 49,953 | 1988 | 46,198 | 1987 | 41,741 | 1986 | 37,935 | 1985 | 35,213 | 1984 | 34,036 | 1983 | 34,740 | 1982 | 36,708 | 1981 | 38,898 | 1980 | 40,886 | 1979 | 42,895 | 1978 | 46,429 | 1977 | 51,533 | 1976 | 56,332 | 1975 | 60,102 | 1974 | 62,158 | 1973 | 61,047 | 1972 | 57,516 | 1971 | 53,810 | 1970 | 50,695 | 1969 | 48,295 | 1968 | 46,166 | 1967 | 44,049 | 1966 | 42,157 | 1965 | 40,674 | 1964 | 39,538 | 1963 | 38,728 | 1962 | 38,039 | 1961 | 37,118 | 1960 | 35,672 |
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