Year | Value | 2022 | 61,139,184 | 2021 | 61,535,736 | 2020 | 63,292,933 | 2019 | 64,922,379 | 2018 | 65,424,591 | 2017 | 64,560,087 | 2016 | 63,152,112 | 2015 | 61,383,167 | 2014 | 58,981,579 | 2013 | 56,125,568 | 2012 | 52,749,986 | 2011 | 49,282,202 | 2010 | 45,827,746 | 2009 | 42,278,799 | 2008 | 39,258,053 | 2007 | 36,894,386 | 2006 | 35,393,848 | 2005 | 34,765,067 | 2004 | 34,762,791 | 2003 | 35,129,692 | 2002 | 35,571,667 | 2001 | 35,622,826 | 2000 | 35,350,243 | 1999 | 34,944,277 | 1998 | 34,356,635 | 1997 | 33,671,849 | 1996 | 32,928,441 | 1995 | 32,299,289 | 1994 | 31,883,714 | 1993 | 31,559,281 | 1992 | 31,175,625 | 1991 | 30,721,162 | 1990 | 30,219,847 | 1989 | 29,678,110 | 1988 | 28,962,556 | 1987 | 28,047,221 | 1986 | 27,118,767 | 1985 | 26,114,778 | 1984 | 25,001,770 | 1983 | 23,914,594 | 1982 | 22,942,045 | 1981 | 22,161,857 | 1980 | 21,661,074 | 1979 | 21,506,082 | 1978 | 21,555,787 | 1977 | 21,678,833 | 1976 | 21,752,827 | 1975 | 21,631,161 | 1974 | 21,313,370 | 1973 | 20,871,565 | 1972 | 20,449,249 | 1971 | 20,087,658 | 1970 | 19,760,698 | 1969 | 19,382,904 | 1968 | 19,014,700 | 1967 | 18,693,880 | 1966 | 18,311,332 | 1965 | 17,874,801 | 1964 | 17,343,544 | 1963 | 16,711,794 | 1962 | 16,073,662 | 1961 | 15,596,004 | 1960 | 15,302,904 |
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