| Year | Value | | 2022 | 11,530,928 | | 2021 | 11,106,158 | | 2020 | 11,109,408 | | 2019 | 11,358,167 | | 2018 | 11,591,371 | | 2017 | 11,843,595 | | 2016 | 11,964,999 | | 2015 | 11,841,560 | | 2014 | 11,545,980 | | 2013 | 11,143,362 | | 2012 | 10,731,186 | | 2011 | 10,418,436 | | 2010 | 10,267,699 | | 2009 | 10,206,522 | | 2008 | 10,240,801 | | 2007 | 10,258,763 | | 2006 | 10,160,115 | | 2005 | 9,926,054 | | 2004 | 9,597,660 | | 2003 | 9,231,728 | | 2002 | 8,844,932 | | 2001 | 8,499,725 | | 2000 | 8,206,156 | | 1999 | 7,862,580 | | 1998 | 7,383,579 | | 1997 | 6,835,158 | | 1996 | 6,296,010 | | 1995 | 5,868,333 | | 1994 | 5,763,127 | | 1993 | 6,021,872 | | 1992 | 6,471,217 | | 1991 | 6,934,495 | | 1990 | 7,269,160 | | 1989 | 7,381,563 | | 1988 | 7,326,189 | | 1987 | 7,217,150 | | 1986 | 7,101,398 | | 1985 | 6,986,562 | | 1984 | 6,851,492 | | 1983 | 6,715,998 | | 1982 | 6,575,158 | | 1981 | 6,423,834 | | 1980 | 6,276,245 | | 1979 | 6,109,538 | | 1978 | 5,902,335 | | 1977 | 5,669,210 | | 1976 | 5,443,667 | | 1975 | 5,231,150 | | 1974 | 5,034,169 | | 1973 | 4,884,735 | | 1972 | 4,765,272 | | 1971 | 4,649,209 | | 1970 | 4,554,090 | | 1969 | 4,489,119 | | 1968 | 4,441,351 | | 1967 | 4,398,596 | | 1966 | 4,349,673 | | 1965 | 4,307,573 | | 1964 | 4,271,134 | | 1963 | 4,203,506 | | 1962 | 4,130,150 | | 1961 | 4,062,858 | | 1960 | 3,985,792 |
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