Year | Value | 2022 | 32,847,321 | 2021 | 32,758,032 | 2020 | 32,670,705 | 2019 | 32,586,250 | 2018 | 32,477,716 | 2017 | 32,363,229 | 2016 | 32,271,469 | 2015 | 32,189,247 | 2014 | 32,078,475 | 2013 | 31,932,616 | 2012 | 31,771,596 | 2011 | 31,623,120 | 2010 | 31,477,219 | 2009 | 31,328,492 | 2008 | 31,174,324 | 2007 | 31,008,324 | 2006 | 30,825,573 | 2005 | 30,619,951 | 2004 | 30,399,010 | 2003 | 30,182,216 | 2002 | 29,973,050 | 2001 | 29,761,295 | 2000 | 29,550,671 | 1999 | 29,353,386 | 1998 | 29,207,912 | 1997 | 29,106,564 | 1996 | 29,010,878 | 1995 | 28,916,978 | 1994 | 28,823,205 | 1993 | 28,727,236 | 1992 | 28,613,713 | 1991 | 28,482,463 | 1990 | 28,243,494 | 1989 | 28,118,685 | 1988 | 27,986,795 | 1987 | 27,850,349 | 1986 | 27,714,041 | 1985 | 27,580,227 | 1984 | 27,447,795 | 1983 | 27,319,315 | 1982 | 27,181,669 | 1981 | 27,030,614 | 1980 | 26,881,168 | 1979 | 26,742,120 | 1978 | 26,618,568 | 1977 | 26,495,395 | 1976 | 26,374,838 | 1975 | 26,254,437 | 1974 | 26,106,391 | 1973 | 25,924,180 | 1972 | 25,713,109 | 1971 | 25,482,418 | 1970 | 25,245,511 | 1969 | 25,014,250 | 1968 | 24,781,319 | 1967 | 24,533,390 | 1966 | 24,267,874 | 1965 | 23,993,157 | 1964 | 23,710,731 | 1963 | 23,429,559 | 1962 | 23,164,060 | 1961 | 22,894,677 | 1960 | 22,627,879 |
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