| Year | Value | | 2022 | 5,625,068 | | 2021 | 5,551,557 | | 2020 | 5,501,379 | | 2019 | 5,463,479 | | 2018 | 5,417,915 | | 2017 | 5,368,559 | | 2016 | 5,312,250 | | 2015 | 5,232,516 | | 2014 | 5,150,017 | | 2013 | 5,090,077 | | 2012 | 5,042,489 | | 2011 | 4,995,070 | | 2010 | 4,939,127 | | 2009 | 4,886,707 | | 2008 | 4,839,246 | | 2007 | 4,751,845 | | 2006 | 4,622,032 | | 2005 | 4,487,975 | | 2004 | 4,365,907 | | 2003 | 4,269,102 | | 2002 | 4,191,530 | | 2001 | 4,128,637 | | 2000 | 4,079,207 | | 1999 | 4,021,934 | | 1998 | 3,955,484 | | 1997 | 3,882,903 | | 1996 | 3,802,937 | | 1995 | 3,714,993 | | 1994 | 3,616,393 | | 1993 | 3,520,128 | | 1992 | 3,440,610 | | 1991 | 3,376,888 | | 1990 | 3,320,535 | | 1989 | 3,262,448 | | 1988 | 3,194,968 | | 1987 | 3,118,257 | | 1986 | 3,035,529 | | 1985 | 2,950,790 | | 1984 | 2,868,980 | | 1983 | 2,790,333 | | 1982 | 2,713,872 | | 1981 | 2,638,273 | | 1980 | 2,569,955 | | 1979 | 2,529,501 | | 1978 | 2,507,327 | | 1977 | 2,480,209 | | 1976 | 2,454,511 | | 1975 | 2,411,808 | | 1974 | 2,334,213 | | 1973 | 2,248,533 | | 1972 | 2,168,441 | | 1971 | 2,086,566 | | 1970 | 2,006,469 | | 1969 | 1,938,432 | | 1968 | 1,876,013 | | 1967 | 1,808,112 | | 1966 | 1,737,408 | | 1965 | 1,667,942 | | 1964 | 1,601,634 | | 1963 | 1,539,975 | | 1962 | 1,485,323 | | 1961 | 1,439,571 | | 1960 | 1,399,640 |
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