| Year | Value | | 2022 | 6,488,650 | | 2021 | 6,319,427 | | 2020 | 6,153,627 | | 2019 | 5,980,560 | | 2018 | 5,789,861 | | 2017 | 5,621,203 | | 2016 | 5,495,462 | | 2015 | 5,407,378 | | 2014 | 5,291,412 | | 2013 | 5,119,502 | | 2012 | 4,943,284 | | 2011 | 4,774,277 | | 2010 | 4,610,573 | | 2009 | 4,402,636 | | 2008 | 4,187,327 | | 2007 | 4,020,991 | | 2006 | 3,878,308 | | 2005 | 3,743,946 | | 2004 | 3,609,997 | | 2003 | 3,480,322 | | 2002 | 3,374,234 | | 2001 | 3,282,043 | | 2000 | 3,202,178 | | 1999 | 3,138,022 | | 1998 | 3,065,465 | | 1997 | 3,009,493 | | 1996 | 3,012,349 | | 1995 | 3,012,894 | | 1994 | 2,839,867 | | 1993 | 2,823,497 | | 1992 | 2,916,527 | | 1991 | 2,842,673 | | 1990 | 2,787,001 | | 1989 | 2,731,686 | | 1988 | 2,679,832 | | 1987 | 2,621,976 | | 1986 | 2,564,034 | | 1985 | 2,517,439 | | 1984 | 2,464,910 | | 1983 | 2,407,469 | | 1982 | 2,345,807 | | 1981 | 2,290,384 | | 1980 | 2,201,733 | | 1979 | 2,114,360 | | 1978 | 2,065,682 | | 1977 | 2,010,045 | | 1976 | 1,962,181 | | 1975 | 1,921,905 | | 1974 | 1,877,890 | | 1973 | 1,833,572 | | 1972 | 1,834,918 | | 1971 | 1,834,298 | | 1970 | 1,792,516 | | 1969 | 1,756,047 | | 1968 | 1,720,242 | | 1967 | 1,681,553 | | 1966 | 1,641,282 | | 1965 | 1,603,686 | | 1964 | 1,561,243 | | 1963 | 1,519,025 | | 1962 | 1,489,006 | | 1961 | 1,453,599 | | 1960 | 1,419,148 |
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