Year | Value | 2023 | 375,617 | 2022 | 364,448 | 2021 | 354,753 | 2020 | 343,001 | 2019 | 331,110 | 2018 | 327,085 | 2017 | 332,694 | 2016 | 340,523 | 2015 | 346,799 | 2014 | 351,019 | 2013 | 357,369 | 2012 | 362,769 | 2011 | 366,240 | 2010 | 369,445 | 2009 | 371,495 | 2008 | 369,980 | 2007 | 369,657 | 2006 | 372,959 | 2005 | 374,137 | 2004 | 372,768 | 2003 | 366,013 | 2002 | 353,906 | 2001 | 337,729 | 2000 | 315,842 | 1999 | 291,060 | 1998 | 265,933 | 1997 | 243,662 | 1996 | 226,408 | 1995 | 212,004 | 1994 | 200,443 | 1993 | 190,419 | 1992 | 179,815 | 1991 | 166,536 | 1990 | 149,338 | 1989 | 130,133 | 1988 | 112,141 | 1987 | 98,974 | 1986 | 96,617 | 1985 | 107,260 | 1984 | 127,414 | 1983 | 154,032 | 1982 | 179,605 | 1981 | 196,764 | 1980 | 205,122 | 1979 | 204,505 | 1978 | 197,593 | 1977 | 190,567 | 1976 | 186,646 | 1975 | 180,359 |
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