Year | Value | 2023 | 441,584 | 2022 | 440,976 | 2021 | 436,702 | 2020 | 431,371 | 2019 | 425,679 | 2018 | 419,639 | 2017 | 412,301 | 2016 | 404,531 | 2015 | 396,307 | 2014 | 387,987 | 2013 | 380,158 | 2012 | 372,350 | 2011 | 363,050 | 2010 | 351,557 | 2009 | 337,706 | 2008 | 321,404 | 2007 | 303,417 | 2006 | 285,179 | 2005 | 267,807 | 2004 | 251,827 | 2003 | 236,321 | 2002 | 220,763 | 2001 | 206,321 | 2000 | 193,407 | 1999 | 181,855 | 1998 | 168,572 | 1997 | 158,338 | 1996 | 153,816 | 1995 | 149,865 | 1994 | 146,390 | 1993 | 142,627 | 1992 | 138,276 | 1991 | 134,690 | 1990 | 131,976 | 1989 | 129,213 | 1988 | 126,648 | 1987 | 124,057 | 1986 | 121,283 | 1985 | 118,759 | 1984 | 116,612 | 1983 | 114,231 | 1982 | 111,606 | 1981 | 108,943 | 1980 | 107,205 | 1979 | 105,233 | 1978 | 103,233 | 1977 | 103,108 | 1976 | 106,598 | 1975 | 111,748 | 1974 | 112,756 |
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