| Year | Value | | 2024 | 3,951,454 | | 2023 | 3,866,983 | | 2022 | 3,776,808 | | 2021 | 3,688,616 | | 2020 | 3,605,840 | | 2019 | 3,521,366 | | 2018 | 3,432,351 | | 2017 | 3,342,708 | | 2016 | 3,253,326 | | 2015 | 3,160,860 | | 2014 | 3,063,929 | | 2013 | 2,963,715 | | 2012 | 2,860,237 | | 2011 | 2,754,526 | | 2010 | 2,648,294 | | 2009 | 2,542,326 | | 2008 | 2,439,082 | | 2007 | 2,340,872 | | 2006 | 2,246,367 | | 2005 | 2,156,845 | | 2004 | 2,073,463 | | 2003 | 1,993,961 | | 2002 | 1,918,923 | | 2001 | 1,849,355 | | 2000 | 1,781,441 | | 1999 | 1,714,985 | | 1998 | 1,652,031 | | 1997 | 1,590,902 | | 1996 | 1,532,204 | | 1995 | 1,478,553 | | 1994 | 1,430,195 | | 1993 | 1,384,783 | | 1992 | 1,341,446 | | 1991 | 1,299,405 | | 1990 | 1,254,477 | | 1989 | 1,204,840 | | 1988 | 1,157,777 | | 1987 | 1,118,388 | | 1986 | 1,085,183 | | 1985 | 1,057,090 | | 1984 | 1,032,527 | | 1983 | 1,009,259 | | 1982 | 985,630 | | 1981 | 960,575 | | 1980 | 934,772 | | 1979 | 908,458 | | 1978 | 880,200 | | 1977 | 850,110 | | 1976 | 818,464 | | 1975 | 785,209 |
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