| Year | Value | | 2024 | 3,998,830 | | 2023 | 3,933,214 | | 2022 | 3,874,810 | | 2021 | 3,826,296 | | 2020 | 3,795,292 | | 2019 | 3,772,379 | | 2018 | 3,753,041 | | 2017 | 3,737,150 | | 2016 | 3,721,681 | | 2015 | 3,700,367 | | 2014 | 3,662,991 | | 2013 | 3,607,738 | | 2012 | 3,541,842 | | 2011 | 3,469,267 | | 2010 | 3,394,485 | | 2009 | 3,319,957 | | 2008 | 3,242,179 | | 2007 | 3,163,333 | | 2006 | 3,086,710 | | 2005 | 3,009,317 | | 2004 | 2,929,655 | | 2003 | 2,848,837 | | 2002 | 2,764,498 | | 2001 | 2,675,746 | | 2000 | 2,582,220 | | 1999 | 2,483,144 | | 1998 | 2,385,438 | | 1997 | 2,295,337 | | 1996 | 2,211,791 | | 1995 | 2,134,065 | | 1994 | 2,061,140 | | 1993 | 1,991,244 | | 1992 | 1,923,104 | | 1991 | 1,855,792 | | 1990 | 1,789,314 | | 1989 | 1,723,779 | | 1988 | 1,657,657 | | 1987 | 1,591,738 | | 1986 | 1,529,042 | | 1985 | 1,470,345 | | 1984 | 1,414,605 | | 1983 | 1,360,137 | | 1982 | 1,304,700 | | 1981 | 1,248,050 | | 1980 | 1,199,933 | | 1979 | 1,159,126 | | 1978 | 1,119,228 | | 1977 | 1,083,850 | | 1976 | 1,051,473 | | 1975 | 1,022,991 |
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