Year | Value | 2024 | 321,472 | 2023 | 311,289 | 2022 | 307,998 | 2021 | 317,453 | 2020 | 335,649 | 2019 | 357,474 | 2018 | 385,528 | 2017 | 417,638 | 2016 | 446,396 | 2015 | 470,119 | 2014 | 488,684 | 2013 | 499,095 | 2012 | 502,018 | 2011 | 504,544 | 2010 | 510,414 | 2009 | 518,895 | 2008 | 528,354 | 2007 | 531,823 | 2006 | 523,148 | 2005 | 502,909 | 2004 | 473,387 | 2003 | 437,059 | 2002 | 401,985 | 2001 | 375,057 | 2000 | 357,043 | 1999 | 346,764 | 1998 | 343,082 | 1997 | 343,469 | 1996 | 345,115 | 1995 | 346,349 | 1994 | 346,305 | 1993 | 344,276 | 1992 | 340,257 | 1991 | 335,005 | 1990 | 329,028 | 1989 | 322,800 | 1988 | 316,910 | 1987 | 311,704 | 1986 | 307,048 | 1985 | 302,346 | 1984 | 296,943 | 1983 | 290,436 | 1982 | 282,555 | 1981 | 273,273 | 1980 | 264,498 | 1979 | 257,377 | 1978 | 251,148 | 1977 | 245,863 | 1976 | 241,695 | 1975 | 238,367 |
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