Year | Value | 2022 | 61,625 | 2021 | 61,783 | 2020 | 61,982 | 2019 | 61,479 | 2018 | 60,322 | 2017 | 59,070 | 2016 | 57,721 | 2015 | 56,288 | 2014 | 54,624 | 2013 | 52,686 | 2012 | 50,728 | 2011 | 48,788 | 2010 | 46,873 | 2009 | 44,987 | 2008 | 43,009 | 2007 | 40,980 | 2006 | 38,979 | 2005 | 37,047 | 2004 | 35,204 | 2003 | 33,446 | 2002 | 31,666 | 2001 | 29,773 | 2000 | 27,904 | 1999 | 26,208 | 1998 | 24,708 | 1997 | 23,358 | 1996 | 22,078 | 1995 | 20,824 | 1994 | 19,712 | 1993 | 18,738 | 1992 | 17,828 | 1991 | 16,998 | 1990 | 16,173 | 1989 | 15,415 | 1988 | 14,854 | 1987 | 14,437 | 1986 | 14,138 | 1985 | 14,052 | 1984 | 14,217 | 1983 | 14,638 | 1982 | 15,249 | 1981 | 17,086 | 1980 | 20,555 | 1979 | 22,074 | 1978 | 21,242 | 1977 | 20,687 | 1976 | 20,575 | 1975 | 20,922 | 1974 | 21,666 | 1973 | 22,721 | 1972 | 24,102 | 1971 | 25,967 | 1970 | 27,337 | 1969 | 27,483 | 1968 | 26,952 | 1967 | 26,119 | 1966 | 25,139 | 1965 | 23,938 | 1964 | 22,475 | 1963 | 20,742 | 1962 | 18,786 | 1961 | 16,672 | 1960 | 15,651 |
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