Year | Value | 2023 | 58,663,972 | 2022 | 59,256,096 | 2021 | 59,967,170 | 2020 | 60,771,735 | 2019 | 61,477,642 | 2018 | 62,141,421 | 2017 | 62,896,956 | 2016 | 63,629,058 | 2015 | 64,354,206 | 2014 | 65,168,127 | 2013 | 65,804,974 | 2012 | 66,183,817 | 2011 | 66,474,693 | 2010 | 66,762,871 | 2009 | 67,147,006 | 2008 | 67,644,269 | 2007 | 68,227,476 | 2006 | 68,845,554 | 2005 | 69,307,835 | 2004 | 69,431,378 | 2003 | 69,313,847 | 2002 | 69,056,765 | 2001 | 68,653,757 | 2000 | 68,232,005 | 1999 | 67,887,247 | 1998 | 67,509,758 | 1997 | 67,072,582 | 1996 | 66,617,873 | 1995 | 66,076,556 | 1994 | 65,508,444 | 1993 | 65,019,396 | 1992 | 64,537,928 | 1991 | 64,066,184 | 1990 | 63,584,111 | 1989 | 62,996,427 | 1988 | 62,266,327 | 1987 | 61,406,271 | 1986 | 60,430,701 | 1985 | 59,395,775 | 1984 | 58,290,997 | 1983 | 57,094,462 | 1982 | 55,921,158 | 1981 | 54,823,032 | 1980 | 53,787,085 | 1979 | 52,878,280 | 1978 | 52,122,668 | 1977 | 51,383,854 | 1976 | 50,558,307 | 1975 | 49,672,317 | 1974 | 48,739,506 |
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