| Year | Value | | 2024 | 3,474,116 | | 2023 | 3,432,398 | | 2022 | 3,391,532 | | 2021 | 3,355,140 | | 2020 | 3,316,874 | | 2019 | 3,273,780 | | 2018 | 3,230,943 | | 2017 | 3,187,583 | | 2016 | 3,143,770 | | 2015 | 3,099,586 | | 2014 | 3,055,701 | | 2013 | 3,012,723 | | 2012 | 2,970,613 | | 2011 | 2,929,960 | | 2010 | 2,892,171 | | 2009 | 2,859,418 | | 2008 | 2,831,247 | | 2007 | 2,804,771 | | 2006 | 2,778,190 | | 2005 | 2,750,105 | | 2004 | 2,720,509 | | 2003 | 2,689,921 | | 2002 | 2,657,280 | | 2001 | 2,620,009 | | 2000 | 2,576,086 | | 1999 | 2,526,645 | | 1998 | 2,474,466 | | 1997 | 2,420,994 | | 1996 | 2,366,857 | | 1995 | 2,312,247 | | 1994 | 2,257,266 | | 1993 | 2,202,094 | | 1992 | 2,146,705 | | 1991 | 2,091,213 | | 1990 | 2,035,999 | | 1989 | 1,981,096 | | 1988 | 1,926,476 | | 1987 | 1,872,605 | | 1986 | 1,819,870 | | 1985 | 1,768,457 | | 1984 | 1,718,591 | | 1983 | 1,670,180 | | 1982 | 1,623,289 | | 1981 | 1,577,735 | | 1980 | 1,533,955 | | 1979 | 1,492,615 | | 1978 | 1,453,409 | | 1977 | 1,415,795 | | 1976 | 1,379,373 | | 1975 | 1,343,935 |
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