Year | Value | 2022 | 42,664,413 | 2021 | 43,195,489 | 2020 | 43,754,597 | 2019 | 44,578,314 | 2018 | 45,827,681 | 2017 | 47,277,323 | 2016 | 49,048,488 | 2015 | 52,209,540 | 2014 | 56,137,328 | 2013 | 59,310,862 | 2012 | 62,189,186 | 2011 | 64,379,942 | 2010 | 64,093,819 | 2009 | 62,039,672 | 2008 | 59,868,349 | 2007 | 57,965,867 | 2006 | 56,342,039 | 2005 | 54,869,137 | 2004 | 53,742,766 | 2003 | 52,751,109 | 2002 | 51,100,603 | 2001 | 49,578,867 | 2000 | 49,311,743 | 1999 | 50,229,110 | 1998 | 52,532,056 | 1997 | 55,646,891 | 1996 | 58,781,377 | 1995 | 61,919,237 | 1994 | 64,419,539 | 1993 | 65,872,990 | 1992 | 66,002,202 | 1991 | 65,198,239 | 1990 | 64,427,451 | 1989 | 63,674,118 | 1988 | 63,526,617 | 1987 | 63,409,303 | 1986 | 60,300,899 | 1985 | 54,679,837 | 1984 | 49,196,271 | 1983 | 43,949,929 | 1982 | 40,912,768 | 1981 | 41,750,407 | 1980 | 44,473,928 | 1979 | 47,121,967 | 1978 | 48,468,445 | 1977 | 48,262,190 | 1976 | 47,448,181 | 1975 | 46,155,681 | 1974 | 44,202,517 | 1973 | 41,970,827 | 1972 | 39,403,664 | 1971 | 36,839,757 | 1970 | 34,471,832 | 1969 | 32,281,586 | 1968 | 30,522,371 | 1967 | 29,025,232 | 1966 | 27,995,659 | 1965 | 27,424,722 | 1964 | 27,178,455 | 1963 | 27,238,062 | 1962 | 27,456,408 | 1961 | 27,688,499 | 1960 | 28,094,070 |
|