| Year | Value | | 2022 | 362,207 | | 2021 | 359,771 | | 2020 | 351,993 | | 2019 | 335,927 | | 2018 | 319,407 | | 2017 | 302,641 | | 2016 | 286,451 | | 2015 | 271,438 | | 2014 | 257,482 | | 2013 | 244,085 | | 2012 | 231,395 | | 2011 | 219,750 | | 2010 | 209,175 | | 2009 | 199,708 | | 2008 | 190,331 | | 2007 | 180,965 | | 2006 | 172,001 | | 2005 | 162,954 | | 2004 | 153,825 | | 2003 | 144,688 | | 2002 | 135,668 | | 2001 | 127,404 | | 2000 | 120,634 | | 1999 | 115,158 | | 1998 | 110,886 | | 1997 | 108,026 | | 1996 | 105,425 | | 1995 | 102,739 | | 1994 | 100,433 | | 1993 | 98,207 | | 1992 | 95,640 | | 1991 | 92,720 | | 1990 | 89,873 | | 1989 | 87,192 | | 1988 | 84,599 | | 1987 | 82,027 | | 1986 | 79,331 | | 1985 | 76,512 | | 1984 | 73,560 | | 1983 | 70,503 | | 1982 | 67,467 | | 1981 | 64,665 | | 1980 | 62,483 | | 1979 | 60,966 | | 1978 | 60,126 | | 1977 | 59,854 | | 1976 | 59,785 | | 1975 | 59,826 | | 1974 | 60,068 | | 1973 | 60,593 | | 1972 | 61,232 | | 1971 | 61,781 | | 1970 | 62,093 | | 1969 | 62,065 | | 1968 | 61,565 | | 1967 | 60,610 | | 1966 | 59,541 | | 1965 | 58,625 | | 1964 | 57,826 | | 1963 | 57,177 | | 1962 | 56,759 | | 1961 | 56,335 | | 1960 | 55,704 |
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