| Year | Value | | 2022 | 1,570,495 | | 2021 | 1,593,375 | | 2020 | 1,602,472 | | 2019 | 1,610,295 | | 2018 | 1,618,928 | | 2017 | 1,622,978 | | 2016 | 1,623,817 | | 2015 | 1,625,622 | | 2014 | 1,630,152 | | 2013 | 1,634,798 | | 2012 | 1,633,525 | | 2011 | 1,621,122 | | 2010 | 1,597,540 | | 2009 | 1,566,367 | | 2008 | 1,531,906 | | 2007 | 1,498,487 | | 2006 | 1,467,588 | | 2005 | 1,436,635 | | 2004 | 1,406,079 | | 2003 | 1,375,084 | | 2002 | 1,342,292 | | 2001 | 1,307,484 | | 2000 | 1,271,386 | | 1999 | 1,235,979 | | 1998 | 1,202,190 | | 1997 | 1,170,403 | | 1996 | 1,140,937 | | 1995 | 1,113,542 | | 1994 | 1,085,409 | | 1993 | 1,056,109 | | 1992 | 1,025,158 | | 1991 | 994,992 | | 1990 | 968,783 | | 1989 | 945,292 | | 1988 | 925,363 | | 1987 | 906,948 | | 1986 | 887,071 | | 1985 | 866,337 | | 1984 | 845,767 | | 1983 | 824,729 | | 1982 | 803,724 | | 1981 | 783,707 | | 1980 | 763,703 | | 1979 | 743,303 | | 1978 | 723,692 | | 1977 | 705,697 | | 1976 | 689,758 | | 1975 | 676,158 | | 1974 | 664,702 | | 1973 | 654,603 | | 1972 | 644,774 | | 1971 | 635,017 | | 1970 | 624,646 | | 1969 | 613,147 | | 1968 | 602,661 | | 1967 | 592,294 | | 1966 | 579,328 | | 1965 | 564,946 | | 1964 | 551,678 | | 1963 | 538,814 | | 1962 | 526,731 | | 1961 | 517,767 | | 1960 | 510,221 |
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