Year | Value | 2022 | 147,992 | 2021 | 148,687 | 2020 | 148,507 | 2019 | 147,108 | 2018 | 144,262 | 2017 | 139,806 | 2016 | 133,892 | 2015 | 126,954 | 2014 | 119,468 | 2013 | 112,040 | 2012 | 105,140 | 2011 | 98,907 | 2010 | 93,154 | 2009 | 87,559 | 2008 | 81,919 | 2007 | 75,890 | 2006 | 69,138 | 2005 | 61,865 | 2004 | 54,590 | 2003 | 48,195 | 2002 | 43,941 | 2001 | 42,667 | 2000 | 44,334 | 1999 | 48,211 | 1998 | 52,933 | 1997 | 56,918 | 1996 | 59,074 | 1995 | 59,033 | 1994 | 57,305 | 1993 | 54,796 | 1992 | 52,412 | 1991 | 50,977 | 1990 | 50,755 | 1989 | 51,530 | 1988 | 52,896 | 1987 | 54,111 | 1986 | 54,533 | 1985 | 53,974 | 1984 | 52,513 | 1983 | 50,256 | 1982 | 47,360 | 1981 | 44,252 | 1980 | 41,341 | 1979 | 38,644 | 1978 | 36,031 | 1977 | 33,809 | 1976 | 32,457 | 1975 | 32,194 | 1974 | 32,982 | 1973 | 34,929 | 1972 | 37,552 | 1971 | 39,707 | 1970 | 40,720 | 1969 | 40,703 | 1968 | 39,685 | 1967 | 37,884 | 1966 | 36,112 | 1965 | 34,881 | 1964 | 34,075 | 1963 | 33,585 | 1962 | 33,353 | 1961 | 32,936 | 1960 | 32,041 |
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