| Year | Value | | 2024 | 3,632,460 | | 2023 | 3,606,524 | | 2022 | 3,585,022 | | 2021 | 3,571,187 | | 2020 | 3,558,805 | | 2019 | 3,527,465 | | 2018 | 3,476,967 | | 2017 | 3,418,223 | | 2016 | 3,355,073 | | 2015 | 3,290,893 | | 2014 | 3,225,362 | | 2013 | 3,154,348 | | 2012 | 3,080,307 | | 2011 | 3,005,753 | | 2010 | 2,927,576 | | 2009 | 2,846,067 | | 2008 | 2,762,845 | | 2007 | 2,676,499 | | 2006 | 2,586,787 | | 2005 | 2,495,742 | | 2004 | 2,404,163 | | 2003 | 2,314,284 | | 2002 | 2,227,942 | | 2001 | 2,144,059 | | 2000 | 2,063,354 | | 1999 | 1,988,028 | | 1998 | 1,917,518 | | 1997 | 1,851,452 | | 1996 | 1,789,283 | | 1995 | 1,727,991 | | 1994 | 1,666,892 | | 1993 | 1,607,549 | | 1992 | 1,550,245 | | 1991 | 1,495,140 | | 1990 | 1,444,037 | | 1989 | 1,394,661 | | 1988 | 1,344,281 | | 1987 | 1,294,084 | | 1986 | 1,243,807 | | 1985 | 1,191,822 | | 1984 | 1,137,705 | | 1983 | 1,083,977 | | 1982 | 1,032,893 | | 1981 | 983,794 | | 1980 | 947,636 | | 1979 | 927,957 | | 1978 | 913,676 | | 1977 | 901,579 | | 1976 | 890,398 | | 1975 | 879,595 |
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