| Year | Value | | 2024 | 76,406,060 | | 2023 | 75,958,748 | | 2022 | 75,664,514 | | 2021 | 75,039,385 | | 2020 | 74,154,256 | | 2019 | 73,216,431 | | 2018 | 71,773,129 | | 2017 | 70,700,912 | | 2016 | 69,845,546 | | 2015 | 68,219,585 | | 2014 | 64,525,973 | | 2013 | 59,792,513 | | 2012 | 55,463,874 | | 2011 | 52,700,909 | | 2010 | 50,721,978 | | 2009 | 48,871,501 | | 2008 | 47,259,065 | | 2007 | 45,840,582 | | 2006 | 45,030,326 | | 2005 | 43,906,580 | | 2004 | 42,828,440 | | 2003 | 41,773,836 | | 2002 | 40,724,455 | | 2001 | 39,662,446 | | 2000 | 38,582,090 | | 1999 | 37,526,148 | | 1998 | 36,513,546 | | 1997 | 35,528,687 | | 1996 | 34,562,813 | | 1995 | 33,603,289 | | 1994 | 32,619,252 | | 1993 | 31,613,396 | | 1992 | 30,614,711 | | 1991 | 29,616,116 | | 1990 | 28,585,557 | | 1989 | 27,504,722 | | 1988 | 26,392,000 | | 1987 | 25,280,555 | | 1986 | 24,185,482 | | 1985 | 23,104,624 | | 1984 | 22,021,870 | | 1983 | 20,942,065 | | 1982 | 19,895,628 | | 1981 | 18,952,062 | | 1980 | 18,110,907 | | 1979 | 17,336,955 | | 1978 | 16,619,376 | | 1977 | 15,922,142 | | 1976 | 15,229,523 |
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