Year | Value | 2022 | 182,054 | 2021 | 186,562 | 2020 | 180,258 | 2019 | 175,796 | 2018 | 173,401 | 2017 | 172,384 | 2016 | 173,247 | 2015 | 175,969 | 2014 | 180,310 | 2013 | 184,742 | 2012 | 187,521 | 2011 | 187,557 | 2010 | 184,994 | 2009 | 180,703 | 2008 | 175,862 | 2007 | 172,188 | 2006 | 169,938 | 2005 | 168,805 | 2004 | 167,991 | 2003 | 166,608 | 2002 | 164,633 | 2001 | 165,027 | 2000 | 164,997 | 1999 | 160,924 | 1998 | 155,419 | 1997 | 149,482 | 1996 | 142,858 | 1995 | 136,138 | 1994 | 133,277 | 1993 | 135,422 | 1992 | 139,612 | 1991 | 144,226 | 1990 | 148,841 | 1989 | 152,273 | 1988 | 151,594 | 1987 | 148,796 | 1986 | 145,800 | 1985 | 141,998 | 1984 | 137,718 | 1983 | 133,118 | 1982 | 128,662 | 1981 | 124,010 | 1980 | 119,093 | 1979 | 114,046 | 1978 | 109,599 | 1977 | 105,322 | 1976 | 100,649 | 1975 | 96,553 | 1974 | 92,454 | 1973 | 87,904 | 1972 | 84,041 | 1971 | 80,928 | 1970 | 78,021 | 1969 | 75,823 | 1968 | 74,485 | 1967 | 73,889 | 1966 | 73,857 | 1965 | 73,812 | 1964 | 73,444 | 1963 | 72,175 | 1962 | 69,742 | 1961 | 65,717 | 1960 | 60,070 |
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