| Year | Value | | 2024 | 3,315,884 | | 2023 | 3,255,581 | | 2022 | 3,221,673 | | 2021 | 3,210,286 | | 2020 | 3,166,634 | | 2019 | 3,098,763 | | 2018 | 3,037,769 | | 2017 | 2,978,658 | | 2016 | 2,923,569 | | 2015 | 2,876,891 | | 2014 | 2,811,655 | | 2013 | 2,732,601 | | 2012 | 2,661,042 | | 2011 | 2,577,062 | | 2010 | 2,510,830 | | 2009 | 2,470,652 | | 2008 | 2,417,553 | | 2007 | 2,406,204 | | 2006 | 2,403,302 | | 2005 | 2,345,150 | | 2004 | 2,298,803 | | 2003 | 2,247,745 | | 2002 | 2,137,462 | | 2001 | 2,047,749 | | 2000 | 2,048,694 | | 1999 | 2,036,179 | | 1998 | 1,969,058 | | 1997 | 1,897,667 | | 1996 | 1,821,394 | | 1995 | 1,738,947 | | 1994 | 1,641,659 | | 1993 | 1,495,602 | | 1992 | 1,317,083 | | 1991 | 1,203,223 | | 1990 | 1,173,502 | | 1989 | 1,144,938 | | 1988 | 1,098,910 | | 1987 | 1,075,731 | | 1986 | 1,071,113 | | 1985 | 1,068,668 | | 1984 | 1,047,802 | | 1983 | 1,022,923 | | 1982 | 1,029,595 | | 1981 | 1,117,013 | | 1980 | 1,229,029 | | 1979 | 1,271,320 | | 1978 | 1,264,175 | | 1977 | 1,234,790 | | 1976 | 1,204,154 | | 1975 | 1,173,233 |
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