Year | Value | 2022 | 42,562,637 | 2021 | 42,109,638 | 2020 | 41,470,292 | 2019 | 40,703,994 | 2018 | 39,804,944 | 2017 | 38,896,985 | 2016 | 38,152,200 | 2015 | 37,584,580 | 2014 | 37,069,292 | 2013 | 36,556,170 | 2012 | 36,031,220 | 2011 | 35,492,726 | 2010 | 34,940,430 | 2009 | 34,381,839 | 2008 | 33,827,174 | 2007 | 33,266,384 | 2006 | 32,688,341 | 2005 | 32,098,047 | 2004 | 31,494,420 | 2003 | 30,879,897 | 2002 | 30,258,416 | 2001 | 29,631,013 | 2000 | 29,002,337 | 1999 | 28,371,575 | 1998 | 27,736,608 | 1997 | 27,097,074 | 1996 | 26,457,143 | 1995 | 25,818,259 | 1994 | 25,175,546 | 1993 | 24,532,847 | 1992 | 23,898,174 | 1991 | 23,273,871 | 1990 | 22,651,774 | 1989 | 22,029,505 | 1988 | 21,420,860 | 1987 | 20,825,680 | 1986 | 20,242,842 | 1985 | 19,658,565 | 1984 | 19,045,788 | 1983 | 18,433,064 | 1982 | 17,833,382 | 1981 | 17,252,315 | 1980 | 16,684,183 | 1979 | 16,130,577 | 1978 | 15,597,001 | 1977 | 15,080,191 | 1976 | 14,587,649 | 1975 | 14,113,854 | 1974 | 13,648,734 | 1973 | 13,189,192 | 1972 | 12,732,186 | 1971 | 12,284,567 | 1970 | 11,839,691 | 1969 | 11,394,585 | 1968 | 10,953,127 | 1967 | 10,513,830 | 1966 | 10,080,469 | 1965 | 9,653,285 | 1964 | 9,229,462 | 1963 | 8,705,990 | 1962 | 8,202,597 | 1961 | 7,719,335 | 1960 | 7,258,379 |
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