| Year | Value | | 2024 | 1,503,578 | | 2023 | 1,489,196 | | 2022 | 1,469,375 | | 2021 | 1,445,675 | | 2020 | 1,416,348 | | 2019 | 1,378,457 | | 2018 | 1,334,424 | | 2017 | 1,287,086 | | 2016 | 1,238,808 | | 2015 | 1,190,720 | | 2014 | 1,142,485 | | 2013 | 1,094,147 | | 2012 | 1,046,088 | | 2011 | 998,734 | | 2010 | 952,735 | | 2009 | 908,791 | | 2008 | 864,470 | | 2007 | 820,650 | | 2006 | 780,439 | | 2005 | 742,727 | | 2004 | 706,537 | | 2003 | 674,243 | | 2002 | 644,795 | | 2001 | 615,048 | | 2000 | 586,091 | | 1999 | 558,652 | | 1998 | 533,037 | | 1997 | 509,787 | | 1996 | 489,481 | | 1995 | 472,109 | | 1994 | 457,278 | | 1993 | 444,965 | | 1992 | 434,517 | | 1991 | 424,634 | | 1990 | 414,545 | | 1989 | 404,348 | | 1988 | 394,226 | | 1987 | 384,033 | | 1986 | 373,957 | | 1985 | 364,265 | | 1984 | 354,322 | | 1983 | 343,620 | | 1982 | 332,731 | | 1981 | 322,112 | | 1980 | 311,962 | | 1979 | 302,191 | | 1978 | 292,657 | | 1977 | 283,638 | | 1976 | 275,871 | | 1975 | 269,535 |
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