| Year | Value | | 2022 | 4,480,157 | | 2021 | 4,370,109 | | 2020 | 4,267,665 | | 2019 | 4,170,439 | | 2018 | 4,071,871 | | 2017 | 3,982,984 | | 2016 | 3,908,064 | | 2015 | 3,843,644 | | 2014 | 3,787,250 | | 2013 | 3,730,718 | | 2012 | 3,665,347 | | 2011 | 3,587,809 | | 2010 | 3,499,427 | | 2009 | 3,403,515 | | 2008 | 3,305,335 | | 2007 | 3,217,802 | | 2006 | 3,149,502 | | 2005 | 3,100,006 | | 2004 | 3,064,258 | | 2003 | 3,022,312 | | 2002 | 2,963,080 | | 2001 | 2,890,863 | | 2000 | 2,815,390 | | 1999 | 2,742,739 | | 1998 | 2,671,829 | | 1997 | 2,601,239 | | 1996 | 2,530,466 | | 1995 | 2,460,099 | | 1994 | 2,394,197 | | 1993 | 2,330,596 | | 1992 | 2,264,516 | | 1991 | 2,193,820 | | 1990 | 2,120,231 | | 1989 | 2,052,629 | | 1988 | 1,994,687 | | 1987 | 1,942,576 | | 1986 | 1,892,456 | | 1985 | 1,840,082 | | 1984 | 1,781,530 | | 1983 | 1,716,980 | | 1982 | 1,648,307 | | 1981 | 1,578,348 | | 1980 | 1,508,749 | | 1979 | 1,437,634 | | 1978 | 1,368,924 | | 1977 | 1,308,088 | | 1976 | 1,253,579 | | 1975 | 1,207,227 | | 1974 | 1,170,191 | | 1973 | 1,136,322 | | 1972 | 1,101,905 | | 1971 | 1,067,025 | | 1970 | 1,037,024 | | 1969 | 1,017,943 | | 1968 | 1,002,684 | | 1967 | 983,640 | | 1966 | 961,651 | | 1965 | 936,970 | | 1964 | 908,493 | | 1963 | 876,550 | | 1962 | 844,070 | | 1961 | 813,745 | | 1960 | 786,867 |
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