Year | Value | 2022 | 45,583,893 | 2021 | 44,442,270 | 2020 | 43,012,934 | 2019 | 41,053,136 | 2018 | 38,869,956 | 2017 | 36,460,655 | 2016 | 34,101,201 | 2015 | 31,939,821 | 2014 | 29,909,406 | 2013 | 28,260,466 | 2012 | 26,859,276 | 2011 | 25,815,922 | 2010 | 25,151,670 | 2009 | 24,677,459 | 2008 | 24,364,625 | 2007 | 24,202,628 | 2006 | 23,976,556 | 2005 | 23,691,887 | 2004 | 23,482,985 | 2003 | 23,275,685 | 2002 | 22,875,260 | 2001 | 22,285,919 | 2000 | 21,654,430 | 1999 | 20,977,976 | 1998 | 20,204,071 | 1997 | 19,465,501 | 1996 | 18,793,898 | 1995 | 18,140,615 | 1994 | 17,561,320 | 1993 | 16,973,014 | 1992 | 16,333,479 | 1991 | 15,794,495 | 1990 | 15,298,257 | 1989 | 14,721,977 | 1988 | 14,137,741 | 1987 | 13,656,874 | 1986 | 13,240,499 | 1985 | 12,844,487 | 1984 | 12,548,517 | 1983 | 12,355,155 | 1982 | 12,110,976 | 1981 | 11,781,656 | 1980 | 11,432,495 | 1979 | 11,047,550 | 1978 | 10,630,324 | 1977 | 10,263,008 | 1976 | 9,981,790 | 1975 | 9,728,854 | 1974 | 9,455,891 | 1973 | 9,200,090 | 1972 | 8,987,657 | 1971 | 8,763,859 | 1970 | 8,495,320 | 1969 | 8,188,558 | 1968 | 7,859,918 | 1967 | 7,556,127 | 1966 | 7,288,739 | 1965 | 7,081,567 | 1964 | 6,984,325 | 1963 | 6,936,638 | 1962 | 6,860,856 | 1961 | 6,814,858 | 1960 | 6,857,827 |
|