| Year | Value | | 2022 | 8,822,442 | | 2021 | 8,555,628 | | 2020 | 8,290,471 | | 2019 | 8,011,375 | | 2018 | 7,725,140 | | 2017 | 7,450,912 | | 2016 | 7,164,565 | | 2015 | 6,899,404 | | 2014 | 6,671,284 | | 2013 | 6,441,979 | | 2012 | 6,234,944 | | 2011 | 6,122,342 | | 2010 | 6,026,604 | | 2009 | 5,877,311 | | 2008 | 5,733,318 | | 2007 | 5,568,675 | | 2006 | 5,400,747 | | 2005 | 5,240,348 | | 2004 | 5,063,740 | | 2003 | 4,882,566 | | 2002 | 4,707,222 | | 2001 | 4,535,229 | | 2000 | 4,358,791 | | 1999 | 4,188,542 | | 1998 | 4,023,019 | | 1997 | 3,860,050 | | 1996 | 3,727,494 | | 1995 | 3,595,262 | | 1994 | 3,468,198 | | 1993 | 3,297,332 | | 1992 | 3,201,070 | | 1991 | 3,355,648 | | 1990 | 3,492,296 | | 1989 | 3,513,928 | | 1988 | 3,581,550 | | 1987 | 3,583,045 | | 1986 | 3,457,285 | | 1985 | 3,317,345 | | 1984 | 3,185,667 | | 1983 | 3,071,636 | | 1982 | 2,975,593 | | 1981 | 2,966,479 | | 1980 | 2,944,488 | | 1979 | 2,702,388 | | 1978 | 2,386,706 | | 1977 | 2,222,416 | | 1976 | 2,164,247 | | 1975 | 2,111,263 | | 1974 | 2,059,811 | | 1973 | 2,007,824 | | 1972 | 1,955,496 | | 1971 | 1,905,321 | | 1970 | 1,856,359 | | 1969 | 1,808,264 | | 1968 | 1,761,603 | | 1967 | 1,716,068 | | 1966 | 1,671,785 | | 1965 | 1,628,540 | | 1964 | 1,586,335 | | 1963 | 1,545,437 | | 1962 | 1,505,583 | | 1961 | 1,466,821 | | 1960 | 1,429,176 |
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