| Year | Value | | 2022 | 6,097,747 | | 2021 | 6,020,925 | | 2020 | 5,943,886 | | 2019 | 5,860,919 | | 2018 | 5,774,185 | | 2017 | 5,686,999 | | 2016 | 5,599,297 | | 2015 | 5,511,477 | | 2014 | 5,423,617 | | 2013 | 5,335,470 | | 2012 | 5,247,336 | | 2011 | 5,159,435 | | 2010 | 5,071,897 | | 2009 | 4,984,968 | | 2008 | 4,898,788 | | 2007 | 4,813,399 | | 2006 | 4,728,586 | | 2005 | 4,645,403 | | 2004 | 4,564,350 | | 2003 | 4,484,341 | | 2002 | 4,405,377 | | 2001 | 4,327,765 | | 2000 | 4,252,810 | | 1999 | 4,179,935 | | 1998 | 4,108,227 | | 1997 | 4,038,449 | | 1996 | 3,969,573 | | 1995 | 3,901,215 | | 1994 | 3,833,292 | | 1993 | 3,764,950 | | 1992 | 3,693,811 | | 1991 | 3,620,306 | | 1990 | 3,547,153 | | 1989 | 3,474,829 | | 1988 | 3,403,543 | | 1987 | 3,333,551 | | 1986 | 3,265,226 | | 1985 | 3,198,483 | | 1984 | 3,133,073 | | 1983 | 3,068,843 | | 1982 | 3,005,490 | | 1981 | 2,942,854 | | 1980 | 2,880,816 | | 1979 | 2,819,329 | | 1978 | 2,758,506 | | 1977 | 2,698,566 | | 1976 | 2,639,818 | | 1975 | 2,582,453 | | 1974 | 2,526,367 | | 1973 | 2,471,505 | | 1972 | 2,418,044 | | 1971 | 2,365,964 | | 1970 | 2,315,329 | | 1969 | 2,266,120 | | 1968 | 2,218,162 | | 1967 | 2,171,565 | | 1966 | 2,126,307 | | 1965 | 2,082,309 | | 1964 | 2,039,526 | | 1963 | 1,997,772 | | 1962 | 1,957,036 | | 1961 | 1,917,392 | | 1960 | 1,878,723 |
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