Year | Value | 2022 | 328,491 | 2021 | 332,539 | 2020 | 336,927 | 2019 | 338,522 | 2018 | 334,510 | 2017 | 328,842 | 2016 | 323,088 | 2015 | 320,962 | 2014 | 323,721 | 2013 | 332,268 | 2012 | 344,098 | 2011 | 349,949 | 2010 | 351,413 | 2009 | 348,277 | 2008 | 343,156 | 2007 | 335,987 | 2006 | 328,735 | 2005 | 319,215 | 2004 | 307,305 | 2003 | 292,611 | 2002 | 279,614 | 2001 | 265,165 | 2000 | 251,843 | 1999 | 240,663 | 1998 | 229,979 | 1997 | 219,494 | 1996 | 208,324 | 1995 | 185,462 | 1994 | 164,241 | 1993 | 143,737 | 1992 | 126,052 | 1991 | 112,648 | 1990 | 105,281 | 1989 | 103,992 | 1988 | 105,021 | 1987 | 109,035 | 1986 | 114,684 | 1985 | 118,645 | 1984 | 119,896 | 1983 | 120,817 | 1982 | 121,287 | 1981 | 121,703 | 1980 | 122,890 | 1979 | 123,878 | 1978 | 119,770 | 1977 | 119,394 | 1976 | 119,037 | 1975 | 118,044 | 1974 | 115,768 | 1973 | 112,072 | 1972 | 108,759 | 1971 | 106,682 | 1970 | 104,299 | 1969 | 101,524 | 1968 | 99,595 | 1967 | 96,791 | 1966 | 93,483 | 1965 | 91,424 | 1964 | 88,044 | 1963 | 85,548 | 1962 | 82,941 | 1961 | 80,030 | 1960 | 79,086 |
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