| Year | Value | | 2024 | 2,582,727 | | 2023 | 2,611,408 | | 2022 | 2,613,455 | | 2021 | 2,601,175 | | 2020 | 2,590,637 | | 2019 | 2,588,807 | | 2018 | 2,587,872 | | 2017 | 2,578,506 | | 2016 | 2,561,775 | | 2015 | 2,549,528 | | 2014 | 2,551,350 | | 2013 | 2,570,234 | | 2012 | 2,606,146 | | 2011 | 2,651,359 | | 2010 | 2,698,518 | | 2009 | 2,741,491 | | 2008 | 2,763,846 | | 2007 | 2,754,208 | | 2006 | 2,722,096 | | 2005 | 2,683,352 | | 2004 | 2,650,915 | | 2003 | 2,630,568 | | 2002 | 2,621,937 | | 2001 | 2,625,499 | | 2000 | 2,642,826 | | 1999 | 2,687,673 | | 1998 | 2,756,712 | | 1997 | 2,820,970 | | 1996 | 2,863,719 | | 1995 | 2,889,568 | | 1994 | 2,904,568 | | 1993 | 2,897,006 | | 1992 | 2,860,977 | | 1991 | 2,803,320 | | 1990 | 2,727,454 | | 1989 | 2,641,704 | | 1988 | 2,553,424 | | 1987 | 2,464,497 | | 1986 | 2,379,331 | | 1985 | 2,296,908 | | 1984 | 2,216,944 | | 1983 | 2,140,028 | | 1982 | 2,066,454 | | 1981 | 1,995,909 | | 1980 | 1,924,950 | | 1979 | 1,844,380 | | 1978 | 1,753,718 | | 1977 | 1,664,531 | | 1976 | 1,582,294 | | 1975 | 1,505,143 |
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