Year | Value | 2022 | 23,174,498 | 2021 | 22,506,109 | 2020 | 21,870,551 | 2019 | 21,202,353 | 2018 | 20,496,099 | 2017 | 19,759,971 | 2016 | 18,987,609 | 2015 | 18,174,468 | 2014 | 17,363,963 | 2013 | 16,536,067 | 2012 | 15,745,914 | 2011 | 15,034,107 | 2010 | 14,337,770 | 2009 | 13,637,898 | 2008 | 12,947,597 | 2007 | 12,255,148 | 2006 | 11,592,759 | 2005 | 10,940,956 | 2004 | 10,286,379 | 2003 | 9,686,905 | 2002 | 9,163,990 | 2001 | 8,682,751 | 2000 | 8,223,968 | 1999 | 7,819,207 | 1998 | 7,475,787 | 1997 | 7,142,066 | 1996 | 6,803,480 | 1995 | 6,463,650 | 1994 | 6,106,592 | 1993 | 5,743,528 | 1992 | 5,418,612 | 1991 | 5,134,008 | 1990 | 4,872,141 | 1989 | 4,615,719 | 1988 | 4,367,904 | 1987 | 4,141,482 | 1986 | 3,928,262 | 1985 | 3,723,742 | 1984 | 3,522,214 | 1983 | 3,315,134 | 1982 | 3,104,330 | 1981 | 2,902,978 | 1980 | 2,722,213 | 1979 | 2,567,477 | 1978 | 2,426,637 | 1977 | 2,293,180 | 1976 | 2,177,033 | 1975 | 2,074,928 | 1974 | 1,978,432 | 1973 | 1,886,664 | 1972 | 1,801,449 | 1971 | 1,731,678 | 1970 | 1,672,981 | 1969 | 1,613,402 | 1968 | 1,544,888 | 1967 | 1,481,529 | 1966 | 1,431,645 | 1965 | 1,399,124 | 1964 | 1,379,666 | 1963 | 1,362,376 | 1962 | 1,344,760 | 1961 | 1,343,326 | 1960 | 1,373,548 |
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