| Year | Value | | 2024 | 7,142,822 | | 2023 | 7,004,566 | | 2022 | 6,872,157 | | 2021 | 6,815,136 | | 2020 | 6,863,793 | | 2019 | 6,870,504 | | 2018 | 6,839,886 | | 2017 | 6,796,692 | | 2016 | 6,751,889 | | 2015 | 6,695,819 | | 2014 | 6,657,642 | | 2013 | 6,601,036 | | 2012 | 6,543,007 | | 2011 | 6,489,034 | | 2010 | 6,457,010 | | 2009 | 6,437,070 | | 2008 | 6,429,065 | | 2007 | 6,432,224 | | 2006 | 6,442,886 | | 2005 | 6,456,265 | | 2004 | 6,486,035 | | 2003 | 6,521,074 | | 2002 | 6,554,379 | | 2001 | 6,563,555 | | 2000 | 6,557,755 | | 1999 | 6,553,322 | | 1998 | 6,552,905 | | 1997 | 6,552,292 | | 1996 | 6,546,090 | | 1995 | 6,553,272 | | 1994 | 6,578,183 | | 1993 | 6,598,480 | | 1992 | 6,600,494 | | 1991 | 6,562,050 | | 1990 | 6,491,788 | | 1989 | 6,400,749 | | 1988 | 6,291,318 | | 1987 | 6,215,495 | | 1986 | 6,142,496 | | 1985 | 6,104,303 | | 1984 | 6,089,857 | | 1983 | 6,080,771 | | 1982 | 6,064,836 | | 1981 | 6,021,444 | | 1980 | 5,963,016 | | 1979 | 5,900,005 | | 1978 | 5,852,725 | | 1977 | 5,802,074 | | 1976 | 5,737,475 |
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