| Year | Value | | 2023 | 4,991,175 | | 2022 | 5,004,112 | | 2021 | 5,002,750 | | 2020 | 4,982,975 | | 2019 | 4,948,191 | | 2018 | 4,903,447 | | 2017 | 4,858,524 | | 2016 | 4,808,608 | | 2015 | 4,752,032 | | 2014 | 4,691,683 | | 2013 | 4,628,966 | | 2012 | 4,564,895 | | 2011 | 4,499,932 | | 2010 | 4,436,811 | | 2009 | 4,379,608 | | 2008 | 4,281,933 | | 2007 | 4,182,354 | | 2006 | 4,124,857 | | 2005 | 4,069,677 | | 2004 | 4,018,433 | | 2003 | 3,975,655 | | 2002 | 3,939,827 | | 2001 | 3,904,764 | | 2000 | 3,868,986 | | 1999 | 3,832,703 | | 1998 | 3,800,154 | | 1997 | 3,769,700 | | 1996 | 3,738,968 | | 1995 | 3,706,920 | | 1994 | 3,669,770 | | 1993 | 3,622,427 | | 1992 | 3,566,397 | | 1991 | 3,510,640 | | 1990 | 3,460,922 | | 1989 | 3,410,002 | | 1988 | 3,357,185 | | 1987 | 3,306,970 | | 1986 | 3,255,821 | | 1985 | 3,207,024 | | 1984 | 3,157,516 | | 1983 | 3,105,896 | | 1982 | 3,057,648 | | 1981 | 3,010,893 | | 1980 | 2,965,614 | | 1979 | 2,924,209 | | 1978 | 2,882,083 | | 1977 | 2,840,076 | | 1976 | 2,799,996 | | 1975 | 2,756,932 | | 1974 | 2,708,632 |
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