| Year | Value | | 2022 | 3,206,236 | | 2021 | 3,215,001 | | 2020 | 3,244,234 | | 2019 | 3,287,877 | | 2018 | 3,346,411 | | 2017 | 3,415,679 | | 2016 | 3,458,282 | | 2015 | 3,474,884 | | 2014 | 3,478,930 | | 2013 | 3,459,902 | | 2012 | 3,426,328 | | 2011 | 3,387,898 | | 2010 | 3,350,863 | | 2009 | 3,324,689 | | 2008 | 3,314,249 | | 2007 | 3,316,828 | | 2006 | 3,337,084 | | 2005 | 3,338,696 | | 2004 | 3,333,480 | | 2003 | 3,319,894 | | 2002 | 3,306,737 | | 2001 | 3,294,670 | | 2000 | 3,280,903 | | 1999 | 3,268,032 | | 1998 | 3,253,503 | | 1997 | 3,229,752 | | 1996 | 3,203,098 | | 1995 | 3,169,311 | | 1994 | 3,121,563 | | 1993 | 3,072,513 | | 1992 | 3,029,589 | | 1991 | 2,982,203 | | 1990 | 2,930,431 | | 1989 | 2,879,280 | | 1988 | 2,880,527 | | 1987 | 2,878,920 | | 1986 | 2,834,238 | | 1985 | 2,809,360 | | 1984 | 2,792,611 | | 1983 | 2,716,244 | | 1982 | 2,619,382 | | 1981 | 2,561,181 | | 1980 | 2,487,289 | | 1979 | 2,408,241 | | 1978 | 2,321,235 | | 1977 | 2,231,386 | | 1976 | 2,148,250 | | 1975 | 2,066,671 | | 1974 | 2,004,073 | | 1973 | 2,001,543 | | 1972 | 1,963,900 | | 1971 | 1,869,161 | | 1970 | 1,812,418 | | 1969 | 1,771,065 | | 1968 | 1,693,508 | | 1967 | 1,641,069 | | 1966 | 1,628,513 | | 1965 | 1,576,764 | | 1964 | 1,505,978 | | 1963 | 1,435,821 | | 1962 | 1,378,313 | | 1961 | 1,334,395 | | 1960 | 1,301,040 |
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