| Year | Value | | 2022 | 4,039,260 | | 2021 | 4,244,476 | | 2020 | 4,472,681 | | 2019 | 4,674,672 | | 2018 | 4,785,432 | | 2017 | 4,841,868 | | 2016 | 4,833,476 | | 2015 | 4,747,121 | | 2014 | 4,665,558 | | 2013 | 4,585,935 | | 2012 | 4,485,371 | | 2011 | 4,409,281 | | 2010 | 4,339,602 | | 2009 | 4,272,471 | | 2008 | 4,195,042 | | 2007 | 4,079,210 | | 2006 | 3,919,028 | | 2005 | 3,616,912 | | 2004 | 3,132,302 | | 2003 | 2,639,778 | | 2002 | 2,281,731 | | 2001 | 2,156,406 | | 2000 | 2,356,411 | | 1999 | 2,832,394 | | 1998 | 3,438,008 | | 1997 | 4,002,414 | | 1996 | 4,295,092 | | 1995 | 4,318,463 | | 1994 | 4,150,063 | | 1993 | 3,839,373 | | 1992 | 3,560,210 | | 1991 | 3,415,121 | | 1990 | 3,430,701 | | 1989 | 3,619,037 | | 1988 | 3,899,560 | | 1987 | 4,110,559 | | 1986 | 4,188,688 | | 1985 | 4,107,727 | | 1984 | 3,860,947 | | 1983 | 3,506,165 | | 1982 | 3,076,923 | | 1981 | 2,645,288 | | 1980 | 2,294,403 | | 1979 | 2,034,950 | | 1978 | 1,894,188 | | 1977 | 1,814,840 | | 1976 | 1,745,358 | | 1975 | 1,757,874 | | 1974 | 1,862,780 | | 1973 | 1,957,656 | | 1972 | 2,078,579 | | 1971 | 2,249,920 | | 1970 | 2,358,989 | | 1969 | 2,370,296 | | 1968 | 2,315,656 | | 1967 | 2,248,011 | | 1966 | 2,185,547 | | 1965 | 2,107,525 | | 1964 | 2,014,973 | | 1963 | 1,940,100 | | 1962 | 1,853,003 | | 1961 | 1,729,669 | | 1960 | 1,623,945 |
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