Year | Value | 2022 | 73,555,145 | 2021 | 71,609,569 | 2020 | 70,857,435 | 2019 | 71,274,127 | 2018 | 73,125,965 | 2017 | 75,869,340 | 2016 | 78,650,523 | 2015 | 81,429,173 | 2014 | 83,601,622 | 2013 | 84,722,874 | 2012 | 84,488,467 | 2011 | 83,304,164 | 2010 | 82,112,501 | 2009 | 80,932,191 | 2008 | 80,412,445 | 2007 | 79,943,227 | 2006 | 76,540,260 | 2005 | 70,691,526 | 2004 | 64,963,769 | 2003 | 59,441,774 | 2002 | 56,033,120 | 2001 | 56,326,366 | 2000 | 58,304,922 | 1999 | 60,079,427 | 1998 | 60,573,428 | 1997 | 59,553,763 | 1996 | 57,931,540 | 1995 | 55,938,377 | 1994 | 53,371,633 | 1993 | 50,552,297 | 1992 | 47,460,377 | 1991 | 44,479,261 | 1990 | 41,843,698 | 1989 | 39,427,403 | 1988 | 37,477,149 | 1987 | 35,860,015 | 1986 | 34,730,228 | 1985 | 34,051,988 | 1984 | 33,579,254 | 1983 | 33,308,767 | 1982 | 33,244,842 | 1981 | 33,124,884 | 1980 | 32,971,582 | 1979 | 32,909,895 | 1978 | 32,800,751 | 1977 | 32,415,071 | 1976 | 31,791,997 | 1975 | 31,126,333 | 1974 | 30,412,521 | 1973 | 29,569,465 | 1972 | 28,768,983 | 1971 | 28,026,934 | 1970 | 27,285,535 | 1969 | 26,681,592 | 1968 | 26,073,588 | 1967 | 25,376,424 | 1966 | 24,811,005 | 1965 | 24,291,312 | 1964 | 23,725,024 | 1963 | 23,206,035 | 1962 | 22,800,314 | 1961 | 22,562,350 | 1960 | 22,523,291 |
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