Year | Value | 2022 | 25,253,135 | 2021 | 25,102,960 | 2020 | 24,928,569 | 2019 | 24,737,948 | 2018 | 24,536,812 | 2017 | 24,313,351 | 2016 | 24,055,309 | 2015 | 23,761,332 | 2014 | 23,436,316 | 2013 | 23,086,112 | 2012 | 22,706,313 | 2011 | 22,311,393 | 2010 | 21,916,991 | 2009 | 21,533,470 | 2008 | 21,145,612 | 2007 | 20,773,648 | 2006 | 20,414,273 | 2005 | 20,070,995 | 2004 | 19,739,382 | 2003 | 19,412,628 | 2002 | 19,101,370 | 2001 | 18,815,405 | 2000 | 18,554,918 | 1999 | 18,321,939 | 1998 | 18,093,311 | 1997 | 17,836,395 | 1996 | 17,540,328 | 1995 | 17,202,046 | 1994 | 16,821,019 | 1993 | 16,408,012 | 1992 | 15,979,305 | 1991 | 15,543,810 | 1990 | 15,108,651 | 1989 | 14,685,045 | 1988 | 14,265,170 | 1987 | 13,839,904 | 1986 | 13,418,795 | 1985 | 13,002,018 | 1984 | 12,584,730 | 1983 | 12,151,973 | 1982 | 11,704,141 | 1981 | 11,256,952 | 1980 | 10,828,519 | 1979 | 10,436,114 | 1978 | 10,087,915 | 1977 | 9,783,886 | 1976 | 9,520,833 | 1975 | 9,278,463 | 1974 | 9,037,098 | 1973 | 8,800,116 | 1972 | 8,563,497 | 1971 | 8,327,028 | 1970 | 8,102,205 | 1969 | 7,892,773 | 1968 | 7,700,169 | 1967 | 7,529,364 | 1966 | 7,375,714 | 1965 | 7,238,329 | 1964 | 7,117,822 | 1963 | 7,006,362 | 1962 | 6,894,292 | 1961 | 6,776,511 | 1960 | 6,652,677 |
|