| Year | Value | | 2024 | 3,079,538 | | 2023 | 2,983,587 | | 2022 | 2,871,252 | | 2021 | 2,741,870 | | 2020 | 2,623,046 | | 2019 | 2,513,597 | | 2018 | 2,411,915 | | 2017 | 2,344,298 | | 2016 | 2,316,061 | | 2015 | 2,323,264 | | 2014 | 2,354,980 | | 2013 | 2,382,473 | | 2012 | 2,385,069 | | 2011 | 2,346,845 | | 2010 | 2,251,401 | | 2009 | 2,133,927 | | 2008 | 2,046,213 | | 2007 | 1,985,609 | | 2006 | 1,953,859 | | 2005 | 1,906,344 | | 2004 | 1,856,058 | | 2003 | 1,800,411 | | 2002 | 1,738,414 | | 2001 | 1,671,689 | | 2000 | 1,603,669 | | 1999 | 1,537,301 | | 1998 | 1,474,672 | | 1997 | 1,417,605 | | 1996 | 1,367,139 | | 1995 | 1,323,329 | | 1994 | 1,284,188 | | 1993 | 1,247,733 | | 1992 | 1,213,736 | | 1991 | 1,182,155 | | 1990 | 1,152,512 | | 1989 | 1,124,598 | | 1988 | 1,098,554 | | 1987 | 1,074,232 | | 1986 | 1,051,348 | | 1985 | 1,029,190 | | 1984 | 1,007,409 | | 1983 | 985,732 | | 1982 | 963,893 | | 1981 | 943,470 | | 1980 | 923,138 | | 1979 | 899,802 | | 1978 | 874,668 | | 1977 | 849,224 | | 1976 | 823,438 | | 1975 | 798,258 |
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