| Year | Value | | 2022 | 2,321,012 | | 2021 | 2,314,107 | | 2020 | 2,289,598 | | 2019 | 2,238,667 | | 2018 | 2,179,147 | | 2017 | 2,120,434 | | 2016 | 2,060,920 | | 2015 | 1,999,978 | | 2014 | 1,944,715 | | 2013 | 1,901,547 | | 2012 | 1,866,023 | | 2011 | 1,838,599 | | 2010 | 1,826,939 | | 2009 | 1,834,299 | | 2008 | 1,859,233 | | 2007 | 1,909,867 | | 2006 | 1,961,455 | | 2005 | 1,973,998 | | 2004 | 1,953,823 | | 2003 | 1,911,496 | | 2002 | 1,829,462 | | 2001 | 1,726,925 | | 2000 | 1,648,744 | | 1999 | 1,595,645 | | 1998 | 1,554,107 | | 1997 | 1,528,575 | | 1996 | 1,521,696 | | 1995 | 1,521,911 | | 1994 | 1,514,037 | | 1993 | 1,497,294 | | 1992 | 1,483,722 | | 1991 | 1,481,453 | | 1990 | 1,489,129 | | 1989 | 1,503,506 | | 1988 | 1,521,965 | | 1987 | 1,539,730 | | 1986 | 1,554,765 | | 1985 | 1,568,540 | | 1984 | 1,584,110 | | 1983 | 1,606,035 | | 1982 | 1,639,600 | | 1981 | 1,686,938 | | 1980 | 1,744,218 | | 1979 | 1,778,139 | | 1978 | 1,753,653 | | 1977 | 1,693,109 | | 1976 | 1,630,668 | | 1975 | 1,577,710 | | 1974 | 1,564,175 | | 1973 | 1,613,187 | | 1972 | 1,688,415 | | 1971 | 1,745,694 | | 1970 | 1,777,463 | | 1969 | 1,790,177 | | 1968 | 1,794,066 | | 1967 | 1,797,146 | | 1966 | 1,798,459 | | 1965 | 1,795,802 | | 1964 | 1,788,637 | | 1963 | 1,776,922 | | 1962 | 1,758,343 | | 1961 | 1,737,183 | | 1960 | 1,718,141 |
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