| Year | Value | | 2022 | 8,327,846 | | 2021 | 7,974,917 | | 2020 | 7,630,345 | | 2019 | 7,280,121 | | 2018 | 6,930,523 | | 2017 | 6,598,376 | | 2016 | 6,262,554 | | 2015 | 5,952,201 | | 2014 | 5,680,248 | | 2013 | 5,413,081 | | 2012 | 5,169,951 | | 2011 | 5,008,903 | | 2010 | 4,727,676 | | 2009 | 4,415,772 | | 2008 | 4,121,412 | | 2007 | 3,825,068 | | 2006 | 4,001,225 | | 2005 | 3,800,778 | | 2004 | 3,594,797 | | 2003 | 3,391,588 | | 2002 | 3,198,834 | | 2001 | 3,049,313 | | 2000 | 2,899,625 | | 1999 | 2,756,649 | | 1998 | 2,619,366 | | 1997 | 2,486,350 | | 1996 | 2,375,118 | | 1995 | 2,266,035 | | 1994 | 2,162,210 | | 1993 | 2,033,292 | | 1992 | 1,951,519 | | 1991 | 2,020,282 | | 1990 | 2,075,792 | | 1989 | 2,062,210 | | 1988 | 2,074,314 | | 1987 | 2,049,122 | | 1986 | 1,957,408 | | 1985 | 1,861,021 | | 1984 | 1,770,842 | | 1983 | 1,691,710 | | 1982 | 1,623,652 | | 1981 | 1,603,680 | | 1980 | 1,576,936 | | 1979 | 1,433,714 | | 1978 | 1,254,243 | | 1977 | 1,156,827 | | 1976 | 1,115,861 | | 1975 | 1,078,129 | | 1974 | 1,032,693 | | 1973 | 982,536 | | 1972 | 933,908 | | 1971 | 887,814 | | 1970 | 843,843 | | 1969 | 801,729 | | 1968 | 761,696 | | 1967 | 723,466 | | 1966 | 687,065 | | 1965 | 652,342 | | 1964 | 619,304 | | 1963 | 586,931 | | 1962 | 555,354 | | 1961 | 525,359 | | 1960 | 496,981 |
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