| Year | Value | | 2022 | 808,726 | | 2021 | 804,567 | | 2020 | 797,202 | | 2019 | 798,753 | | 2018 | 785,514 | | 2017 | 763,252 | | 2016 | 759,087 | | 2015 | 755,031 | | 2014 | 751,115 | | 2013 | 747,420 | | 2012 | 743,966 | | 2011 | 744,230 | | 2010 | 747,932 | | 2009 | 751,258 | | 2008 | 754,150 | | 2007 | 756,521 | | 2006 | 758,367 | | 2005 | 759,709 | | 2004 | 760,424 | | 2003 | 760,562 | | 2002 | 760,323 | | 2001 | 759,809 | | 2000 | 759,051 | | 1999 | 758,014 | | 1998 | 756,697 | | 1997 | 755,211 | | 1996 | 753,571 | | 1995 | 751,689 | | 1994 | 749,546 | | 1993 | 747,189 | | 1992 | 744,998 | | 1991 | 744,096 | | 1990 | 747,116 | | 1989 | 752,897 | | 1988 | 758,450 | | 1987 | 763,706 | | 1986 | 768,508 | | 1985 | 772,671 | | 1984 | 776,007 | | 1983 | 778,372 | | 1982 | 779,639 | | 1981 | 779,686 | | 1980 | 778,176 | | 1979 | 774,482 | | 1978 | 768,609 | | 1977 | 761,378 | | 1976 | 753,553 | | 1975 | 745,590 | | 1974 | 737,701 | | 1973 | 729,865 | | 1972 | 721,994 | | 1971 | 713,904 | | 1970 | 705,261 | | 1969 | 695,919 | | 1968 | 685,887 | | 1967 | 675,064 | | 1966 | 663,241 | | 1965 | 650,207 | | 1964 | 635,957 | | 1963 | 620,703 | | 1962 | 604,833 | | 1961 | 588,597 | | 1960 | 571,990 |
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