Year | Value | 2022 | 46,999,349 | 2021 | 48,774,454 | 2020 | 51,894,838 | 2019 | 55,767,543 | 2018 | 58,905,735 | 2017 | 61,766,286 | 2016 | 63,931,731 | 2015 | 63,580,928 | 2014 | 61,432,093 | 2013 | 59,168,004 | 2012 | 57,187,865 | 2011 | 55,493,553 | 2010 | 54,029,558 | 2009 | 52,977,083 | 2008 | 52,062,600 | 2007 | 50,488,562 | 2006 | 49,037,991 | 2005 | 48,814,434 | 2004 | 49,777,043 | 2003 | 52,162,230 | 2002 | 55,383,221 | 2001 | 58,627,305 | 2000 | 61,852,420 | 1999 | 64,397,045 | 1998 | 65,822,259 | 1997 | 65,837,564 | 1996 | 64,887,849 | 1995 | 63,901,352 | 1994 | 62,878,409 | 1993 | 62,542,994 | 1992 | 62,307,375 | 1991 | 59,139,376 | 1990 | 53,609,746 | 1989 | 48,273,632 | 1988 | 43,134,519 | 1987 | 40,158,836 | 1986 | 40,981,140 | 1985 | 43,617,240 | 1984 | 46,194,863 | 1983 | 47,549,240 | 1982 | 47,385,752 | 1981 | 46,612,845 | 1980 | 45,421,974 | 1979 | 43,562,517 | 1978 | 41,369,776 | 1977 | 38,840,135 | 1976 | 36,349,413 | 1975 | 34,066,129 | 1974 | 31,920,738 | 1973 | 30,167,889 | 1972 | 28,669,070 | 1971 | 27,637,981 | 1970 | 27,031,292 | 1969 | 26,629,034 | 1968 | 26,450,990 | 1967 | 26,486,186 | 1966 | 26,440,637 | 1965 | 26,357,976 | 1964 | 26,539,079 | 1963 | 26,827,896 | 1962 | 26,781,580 | 1961 | 26,534,184 | 1960 | 26,443,428 |
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