| Year | Value | | 2022 | 2,023,055 | | 2021 | 1,992,659 | | 2020 | 1,969,249 | | 2019 | 1,940,457 | | 2018 | 1,913,780 | | 2017 | 1,896,683 | | 2016 | 1,882,641 | | 2015 | 1,868,352 | | 2014 | 1,861,203 | | 2013 | 1,855,158 | | 2012 | 1,835,551 | | 2011 | 1,802,538 | | 2010 | 1,767,648 | | 2009 | 1,728,002 | | 2008 | 1,682,291 | | 2007 | 1,635,167 | | 2006 | 1,581,928 | | 2005 | 1,520,796 | | 2004 | 1,453,123 | | 2003 | 1,389,129 | | 2002 | 1,334,400 | | 2001 | 1,288,854 | | 2000 | 1,253,873 | | 1999 | 1,233,826 | | 1998 | 1,228,786 | | 1997 | 1,220,648 | | 1996 | 1,205,192 | | 1995 | 1,199,287 | | 1994 | 1,193,541 | | 1993 | 1,173,508 | | 1992 | 1,140,985 | | 1991 | 1,103,953 | | 1990 | 1,075,331 | | 1989 | 1,034,825 | | 1988 | 981,452 | | 1987 | 958,267 | | 1986 | 977,496 | | 1985 | 1,001,297 | | 1984 | 1,036,358 | | 1983 | 1,096,273 | | 1982 | 1,143,338 | | 1981 | 1,164,383 | | 1980 | 1,173,266 | | 1979 | 1,176,775 | | 1978 | 1,169,255 | | 1977 | 1,152,634 | | 1976 | 1,136,912 | | 1975 | 1,117,312 | | 1974 | 1,096,494 | | 1973 | 1,081,034 | | 1972 | 1,068,753 | | 1971 | 1,056,656 | | 1970 | 1,036,767 | | 1969 | 1,001,090 | | 1968 | 954,087 | | 1967 | 902,781 | | 1966 | 852,024 | | 1965 | 812,524 | | 1964 | 796,505 | | 1963 | 796,364 | | 1962 | 801,514 | | 1961 | 811,084 | | 1960 | 822,524 |
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