| Year | Value | | 2022 | 1,481,869 | | 2021 | 1,455,915 | | 2020 | 1,428,879 | | 2019 | 1,405,065 | | 2018 | 1,377,646 | | 2017 | 1,353,327 | | 2016 | 1,333,609 | | 2015 | 1,316,372 | | 2014 | 1,309,998 | | 2013 | 1,314,433 | | 2012 | 1,326,336 | | 2011 | 1,343,896 | | 2010 | 1,366,466 | | 2009 | 1,392,947 | | 2008 | 1,422,034 | | 2007 | 1,442,020 | | 2006 | 1,450,202 | | 2005 | 1,454,722 | | 2004 | 1,455,269 | | 2003 | 1,451,608 | | 2002 | 1,444,341 | | 2001 | 1,433,513 | | 2000 | 1,419,463 | | 1999 | 1,402,974 | | 1998 | 1,384,425 | | 1997 | 1,365,229 | | 1996 | 1,346,753 | | 1995 | 1,328,744 | | 1994 | 1,310,380 | | 1993 | 1,290,752 | | 1992 | 1,269,905 | | 1991 | 1,248,232 | | 1990 | 1,223,830 | | 1989 | 1,196,219 | | 1988 | 1,166,972 | | 1987 | 1,136,890 | | 1986 | 1,106,471 | | 1985 | 1,076,322 | | 1984 | 1,046,999 | | 1983 | 1,017,994 | | 1982 | 989,344 | | 1981 | 961,669 | | 1980 | 934,524 | | 1979 | 908,251 | | 1978 | 883,299 | | 1977 | 858,709 | | 1976 | 835,088 | | 1975 | 812,455 | | 1974 | 790,169 | | 1973 | 768,287 | | 1972 | 745,661 | | 1971 | 722,412 | | 1970 | 700,744 | | 1969 | 679,904 | | 1968 | 658,441 | | 1967 | 636,883 | | 1966 | 614,783 | | 1965 | 591,770 | | 1964 | 567,981 | | 1963 | 544,505 | | 1962 | 522,540 | | 1961 | 502,824 | | 1960 | 486,049 |
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