Year | Value | 2022 | 46,067,182 | 2021 | 44,865,251 | 2020 | 43,402,772 | 2019 | 41,427,579 | 2018 | 39,239,121 | 2017 | 36,844,070 | 2016 | 34,513,529 | 2015 | 32,364,601 | 2014 | 30,329,964 | 2013 | 28,680,025 | 2012 | 27,274,873 | 2011 | 26,224,822 | 2010 | 25,554,755 | 2009 | 25,077,139 | 2008 | 24,762,074 | 2007 | 24,595,827 | 2006 | 24,360,671 | 2005 | 24,061,355 | 2004 | 23,832,832 | 2003 | 23,600,433 | 2002 | 23,171,860 | 2001 | 22,554,625 | 2000 | 21,896,527 | 1999 | 21,195,054 | 1998 | 20,398,511 | 1997 | 19,641,510 | 1996 | 18,955,551 | 1995 | 18,290,665 | 1994 | 17,701,282 | 1993 | 17,105,210 | 1992 | 16,459,966 | 1991 | 15,916,167 | 1990 | 15,416,081 | 1989 | 14,836,902 | 1988 | 14,250,313 | 1987 | 13,767,245 | 1986 | 13,348,681 | 1985 | 12,950,626 | 1984 | 12,652,838 | 1983 | 12,458,213 | 1982 | 12,213,429 | 1981 | 11,883,424 | 1980 | 11,532,691 | 1979 | 11,145,090 | 1978 | 10,723,923 | 1977 | 10,351,592 | 1976 | 10,065,744 | 1975 | 9,809,506 | 1974 | 9,534,431 | 1973 | 9,277,706 | 1972 | 9,065,488 | 1971 | 8,842,048 | 1970 | 8,573,312 | 1969 | 8,265,983 | 1968 | 7,936,462 | 1967 | 7,631,458 | 1966 | 7,362,747 | 1965 | 7,154,308 | 1964 | 7,055,785 | 1963 | 7,006,759 | 1962 | 6,929,598 | 1961 | 6,882,080 | 1960 | 6,923,310 |
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