| Year | Value | | 2024 | 2,508,558 | | 2023 | 2,441,025 | | 2022 | 2,395,078 | | 2021 | 2,363,811 | | 2020 | 2,354,818 | | 2019 | 2,351,044 | | 2018 | 2,340,601 | | 2017 | 2,327,684 | | 2016 | 2,288,523 | | 2015 | 2,220,174 | | 2014 | 2,136,149 | | 2013 | 2,040,653 | | 2012 | 1,950,955 | | 2011 | 1,883,282 | | 2010 | 1,845,851 | | 2009 | 1,824,455 | | 2008 | 1,790,469 | | 2007 | 1,734,489 | | 2006 | 1,681,635 | | 2005 | 1,608,631 | | 2004 | 1,533,662 | | 2003 | 1,459,860 | | 2002 | 1,389,979 | | 2001 | 1,326,097 | | 2000 | 1,269,651 | | 1999 | 1,221,419 | | 1998 | 1,181,005 | | 1997 | 1,146,922 | | 1996 | 1,117,199 | | 1995 | 1,089,839 | | 1994 | 1,063,279 | | 1993 | 1,037,821 | | 1992 | 1,014,342 | | 1991 | 992,666 | | 1990 | 972,109 | | 1989 | 952,341 | | 1988 | 933,327 | | 1987 | 914,832 | | 1986 | 896,567 | | 1985 | 877,982 | | 1984 | 858,948 | | 1983 | 839,534 | | 1982 | 819,892 | | 1981 | 801,647 | | 1980 | 784,091 | | 1979 | 763,813 | | 1978 | 741,141 | | 1977 | 718,033 | | 1976 | 695,119 | | 1975 | 672,264 |
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