Year | Value | 2022 | 45,040,729 | 2021 | 43,872,828 | 2020 | 42,664,046 | 2019 | 41,522,356 | 2018 | 40,483,107 | 2017 | 39,473,005 | 2016 | 38,466,493 | 2015 | 37,495,539 | 2014 | 36,554,204 | 2013 | 35,589,609 | 2012 | 34,639,693 | 2011 | 33,694,038 | 2010 | 32,768,510 | 2009 | 31,879,586 | 2008 | 31,015,258 | 2007 | 30,180,067 | 2006 | 29,344,950 | 2005 | 28,476,346 | 2004 | 27,627,568 | 2003 | 26,867,677 | 2002 | 26,181,868 | 2001 | 25,550,308 | 2000 | 24,946,304 | 1999 | 24,328,394 | 1998 | 23,686,738 | 1997 | 23,049,460 | 1996 | 22,430,910 | 1995 | 21,786,569 | 1994 | 21,074,135 | 1993 | 20,357,394 | 1992 | 19,663,738 | 1991 | 19,020,481 | 1990 | 18,477,154 | 1989 | 17,976,277 | 1988 | 17,498,655 | 1987 | 17,040,927 | 1986 | 16,586,991 | 1985 | 16,154,628 | 1984 | 15,733,678 | 1983 | 15,317,807 | 1982 | 14,905,100 | 1981 | 14,514,158 | 1980 | 14,155,598 | 1979 | 13,732,975 | 1978 | 13,242,472 | 1977 | 12,823,279 | 1976 | 12,497,298 | 1975 | 12,212,914 | 1974 | 11,985,110 | 1973 | 11,802,487 | 1972 | 11,600,998 | 1971 | 11,423,985 | 1970 | 11,242,678 | 1969 | 10,996,578 | 1968 | 10,748,872 | 1967 | 10,519,743 | 1966 | 10,310,054 | 1965 | 10,107,561 | 1964 | 9,908,870 | 1963 | 9,717,787 | 1962 | 9,529,201 | 1961 | 9,341,699 | 1960 | 9,160,874 |
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