Year | Value | 2022 | 74,387,322 | 2021 | 72,431,961 | 2020 | 71,681,849 | 2019 | 72,114,422 | 2018 | 73,996,237 | 2017 | 76,795,819 | 2016 | 79,643,708 | 2015 | 82,478,464 | 2014 | 84,698,569 | 2013 | 85,855,122 | 2012 | 85,634,408 | 2011 | 84,442,822 | 2010 | 83,226,806 | 2009 | 82,009,771 | 2008 | 81,450,538 | 2007 | 80,930,571 | 2006 | 77,471,055 | 2005 | 71,581,671 | 2004 | 65,823,507 | 2003 | 60,282,643 | 2002 | 56,872,392 | 2001 | 57,158,197 | 2000 | 59,113,692 | 1999 | 60,857,997 | 1998 | 61,297,752 | 1997 | 60,195,695 | 1996 | 58,497,727 | 1995 | 56,467,690 | 1994 | 53,890,065 | 1993 | 51,072,622 | 1992 | 48,009,646 | 1991 | 45,078,544 | 1990 | 42,472,435 | 1989 | 40,063,411 | 1988 | 38,123,757 | 1987 | 36,512,325 | 1986 | 35,383,050 | 1985 | 34,704,642 | 1984 | 34,232,380 | 1983 | 33,960,425 | 1982 | 33,889,366 | 1981 | 33,753,867 | 1980 | 33,575,939 | 1979 | 33,481,912 | 1978 | 33,331,874 | 1977 | 32,898,596 | 1976 | 32,226,902 | 1975 | 31,515,551 | 1974 | 30,759,528 | 1973 | 29,878,525 | 1972 | 29,047,114 | 1971 | 28,281,039 | 1970 | 27,520,397 | 1969 | 26,901,035 | 1968 | 26,282,348 | 1967 | 25,577,582 | 1966 | 25,005,912 | 1965 | 24,481,419 | 1964 | 23,911,724 | 1963 | 23,390,072 | 1962 | 22,981,793 | 1961 | 22,741,223 | 1960 | 22,699,827 |
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