Year | Value | 2022 | 98,658,277 | 2021 | 101,148,336 | 2020 | 101,009,225 | 2019 | 98,975,404 | 2018 | 96,731,508 | 2017 | 94,643,664 | 2016 | 92,689,544 | 2015 | 90,860,805 | 2014 | 89,324,898 | 2013 | 87,764,334 | 2012 | 85,463,837 | 2011 | 83,315,268 | 2010 | 82,451,401 | 2009 | 82,761,971 | 2008 | 84,440,327 | 2007 | 87,024,293 | 2006 | 89,721,159 | 2005 | 92,463,659 | 2004 | 94,613,657 | 2003 | 95,738,436 | 2002 | 95,499,965 | 2001 | 94,293,395 | 2000 | 93,082,218 | 1999 | 91,967,367 | 1998 | 91,642,800 | 1997 | 91,406,845 | 1996 | 88,257,287 | 1995 | 82,750,746 | 1994 | 77,344,876 | 1993 | 72,047,168 | 1992 | 68,837,882 | 1991 | 69,235,502 | 1990 | 71,306,354 | 1989 | 73,297,653 | 1988 | 73,915,664 | 1987 | 72,928,630 | 1986 | 71,357,419 | 1985 | 69,376,982 | 1984 | 66,794,344 | 1983 | 63,881,767 | 1982 | 60,563,490 | 1981 | 57,220,490 | 1980 | 53,820,859 | 1979 | 50,247,010 | 1978 | 47,136,373 | 1977 | 44,554,424 | 1976 | 42,942,770 | 1975 | 42,437,503 | 1974 | 42,637,680 | 1973 | 43,273,697 | 1972 | 44,080,297 | 1971 | 44,385,220 | 1970 | 44,176,811 | 1969 | 43,791,897 | 1968 | 43,195,561 | 1967 | 42,375,066 | 1966 | 41,465,309 | 1965 | 40,807,276 | 1964 | 40,460,571 | 1963 | 40,218,046 | 1962 | 39,864,585 | 1961 | 39,427,305 | 1960 | 38,906,800 |
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