Year | Value | 2022 | 16,401,834 | 2021 | 16,269,323 | 2020 | 16,136,385 | 2019 | 16,002,886 | 2018 | 15,869,758 | 2017 | 15,737,956 | 2016 | 15,607,248 | 2015 | 15,477,354 | 2014 | 15,351,564 | 2013 | 15,230,608 | 2012 | 15,116,334 | 2011 | 15,008,319 | 2010 | 14,904,929 | 2009 | 14,796,839 | 2008 | 14,691,216 | 2007 | 14,604,648 | 2006 | 14,513,343 | 2005 | 14,413,592 | 2004 | 14,303,977 | 2003 | 14,185,313 | 2002 | 14,081,401 | 2001 | 13,987,834 | 2000 | 13,882,837 | 1999 | 13,768,157 | 1998 | 13,642,656 | 1997 | 13,508,326 | 1996 | 13,364,401 | 1995 | 13,211,496 | 1994 | 13,028,599 | 1993 | 12,808,195 | 1992 | 12,580,772 | 1991 | 12,359,133 | 1990 | 12,143,594 | 1989 | 11,935,448 | 1988 | 11,732,303 | 1987 | 11,532,316 | 1986 | 11,334,767 | 1985 | 11,139,984 | 1984 | 10,950,011 | 1983 | 10,764,626 | 1982 | 10,582,824 | 1981 | 10,403,000 | 1980 | 10,227,007 | 1979 | 10,075,121 | 1978 | 9,927,644 | 1977 | 9,783,983 | 1976 | 9,638,520 | 1975 | 9,482,084 | 1974 | 9,237,924 | 1973 | 8,983,848 | 1972 | 8,704,767 | 1971 | 8,414,057 | 1970 | 8,128,308 | 1969 | 7,537,743 | 1968 | 6,967,695 | 1967 | 6,507,258 | 1966 | 6,195,555 | 1965 | 5,909,602 | 1964 | 5,639,553 | 1963 | 5,378,823 | 1962 | 5,132,378 | 1961 | 4,905,076 | 1960 | 4,684,995 |
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