Year | Value | 2022 | 60,360,998 | 2021 | 59,916,372 | 2020 | 59,457,333 | 2019 | 59,100,381 | 2018 | 58,788,854 | 2017 | 58,449,347 | 2016 | 58,073,997 | 2015 | 57,649,623 | 2014 | 57,221,743 | 2013 | 56,799,279 | 2012 | 56,316,601 | 2011 | 55,814,181 | 2010 | 55,287,870 | 2009 | 54,668,466 | 2008 | 53,950,238 | 2007 | 53,131,026 | 2006 | 52,198,078 | 2005 | 51,201,346 | 2004 | 50,145,049 | 2003 | 49,020,958 | 2002 | 47,933,200 | 2001 | 46,932,385 | 2000 | 46,007,647 | 1999 | 45,188,745 | 1998 | 44,481,296 | 1997 | 43,770,772 | 1996 | 42,979,906 | 1995 | 42,136,388 | 1994 | 41,246,219 | 1993 | 40,341,105 | 1992 | 39,478,912 | 1991 | 38,639,865 | 1990 | 37,824,721 | 1989 | 37,060,232 | 1988 | 36,333,961 | 1987 | 35,632,863 | 1986 | 34,968,195 | 1985 | 34,306,598 | 1984 | 33,602,368 | 1983 | 32,868,066 | 1982 | 32,144,350 | 1981 | 31,429,727 | 1980 | 30,708,253 | 1979 | 29,994,037 | 1978 | 29,271,761 | 1977 | 28,507,688 | 1976 | 27,731,347 | 1975 | 26,945,031 | 1974 | 26,134,434 | 1973 | 25,151,165 | 1972 | 24,035,674 | 1971 | 22,991,533 | 1970 | 21,998,411 | 1969 | 21,053,627 | 1968 | 20,358,425 | 1967 | 19,899,481 | 1966 | 19,501,699 | 1965 | 19,179,439 | 1964 | 18,938,413 | 1963 | 18,787,136 | 1962 | 18,689,550 | 1961 | 18,582,856 | 1960 | 18,431,777 |
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