Year | Value | 2022 | 81,474,747 | 2021 | 80,445,050 | 2020 | 79,286,046 | 2019 | 78,042,206 | 2018 | 77,408,497 | 2017 | 76,832,647 | 2016 | 73,465,867 | 2015 | 67,828,752 | 2014 | 62,338,974 | 2013 | 57,048,645 | 2012 | 53,770,217 | 2011 | 53,994,721 | 2010 | 55,881,986 | 2009 | 57,709,861 | 2008 | 58,414,423 | 2007 | 57,689,975 | 2006 | 56,358,498 | 2005 | 54,625,707 | 2004 | 52,261,185 | 2003 | 49,525,082 | 2002 | 46,368,328 | 2001 | 43,247,745 | 2000 | 40,404,313 | 1999 | 37,703,635 | 1998 | 35,504,732 | 1997 | 33,742,983 | 1996 | 32,473,608 | 1995 | 31,574,960 | 1994 | 30,884,649 | 1993 | 30,383,536 | 1992 | 30,059,159 | 1991 | 29,755,468 | 1990 | 29,565,263 | 1989 | 29,545,860 | 1988 | 29,508,587 | 1987 | 29,253,515 | 1986 | 28,729,222 | 1985 | 28,071,975 | 1984 | 27,372,439 | 1983 | 26,624,476 | 1982 | 25,916,373 | 1981 | 25,270,703 | 1980 | 24,681,079 | 1979 | 24,186,863 | 1978 | 23,640,882 | 1977 | 23,016,454 | 1976 | 22,525,185 | 1975 | 22,047,713 | 1974 | 21,442,333 | 1973 | 20,828,513 | 1972 | 20,352,485 | 1971 | 19,971,516 | 1970 | 19,583,340 | 1969 | 19,287,718 | 1968 | 19,103,632 | 1967 | 18,816,540 | 1966 | 18,379,197 | 1965 | 17,956,975 | 1964 | 17,662,197 | 1963 | 17,445,818 | 1962 | 17,266,336 | 1961 | 17,253,591 | 1960 | 17,410,213 |
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