Year | Value | 2022 | 55,315,469 | 2021 | 54,325,266 | 2020 | 53,259,451 | 2019 | 52,121,119 | 2018 | 50,918,972 | 2017 | 49,730,482 | 2016 | 48,602,146 | 2015 | 47,547,998 | 2014 | 46,622,768 | 2013 | 45,827,696 | 2012 | 45,045,025 | 2011 | 44,193,156 | 2010 | 43,303,427 | 2009 | 42,399,582 | 2008 | 41,501,976 | 2007 | 40,645,402 | 2006 | 39,803,240 | 2005 | 38,993,450 | 2004 | 38,242,681 | 2003 | 37,524,293 | 2002 | 36,829,138 | 2001 | 36,167,826 | 2000 | 35,518,381 | 1999 | 34,833,102 | 1998 | 34,117,578 | 1997 | 33,407,161 | 1996 | 32,698,754 | 1995 | 31,986,658 | 1994 | 31,270,377 | 1993 | 30,522,915 | 1992 | 29,716,856 | 1991 | 28,866,710 | 1990 | 27,985,915 | 1989 | 27,087,424 | 1988 | 25,965,212 | 1987 | 24,626,855 | 1986 | 23,334,200 | 1985 | 22,107,390 | 1984 | 20,934,956 | 1983 | 20,064,785 | 1982 | 19,521,130 | 1981 | 19,052,394 | 1980 | 18,635,081 | 1979 | 18,290,740 | 1978 | 18,029,830 | 1977 | 17,828,777 | 1976 | 17,650,401 | 1975 | 17,455,001 | 1974 | 17,226,324 | 1973 | 16,962,645 | 1972 | 16,672,072 | 1971 | 16,394,662 | 1970 | 16,147,154 | 1969 | 15,916,708 | 1968 | 15,699,016 | 1967 | 15,492,753 | 1966 | 15,285,840 | 1965 | 15,064,883 | 1964 | 14,826,766 | 1963 | 14,571,390 | 1962 | 14,303,111 | 1961 | 14,036,817 | 1960 | 13,782,977 |
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