Year | Value | 2022 | 25,773,753 | 2021 | 25,842,376 | 2020 | 25,897,329 | 2019 | 25,874,966 | 2018 | 25,802,041 | 2017 | 25,706,975 | 2016 | 25,651,599 | 2015 | 25,548,338 | 2014 | 25,390,519 | 2013 | 25,204,806 | 2012 | 25,062,652 | 2011 | 24,902,531 | 2010 | 24,701,859 | 2009 | 24,592,587 | 2008 | 24,483,738 | 2007 | 24,315,489 | 2006 | 24,209,494 | 2005 | 24,102,905 | 2004 | 24,076,910 | 2003 | 24,006,936 | 2002 | 23,906,741 | 2001 | 23,792,460 | 2000 | 23,622,809 | 1999 | 23,426,381 | 1998 | 23,260,500 | 1997 | 23,094,304 | 1996 | 22,879,247 | 1995 | 22,660,743 | 1994 | 22,430,682 | 1993 | 22,201,921 | 1992 | 21,974,750 | 1991 | 21,746,739 | 1990 | 21,522,813 | 1989 | 21,294,208 | 1988 | 21,068,803 | 1987 | 20,849,213 | 1986 | 20,631,098 | 1985 | 20,420,276 | 1984 | 20,223,186 | 1983 | 19,980,571 | 1982 | 19,695,035 | 1981 | 19,400,705 | 1980 | 19,112,458 | 1979 | 18,832,769 | 1978 | 18,564,755 | 1977 | 18,299,620 | 1976 | 18,030,838 | 1975 | 17,754,217 | 1974 | 17,456,750 | 1973 | 17,155,860 | 1972 | 16,852,495 | 1971 | 16,537,381 | 1970 | 16,217,206 | 1969 | 15,873,294 | 1968 | 15,524,621 | 1967 | 15,174,605 | 1966 | 14,829,724 | 1965 | 14,457,525 | 1964 | 14,079,553 | 1963 | 13,697,823 | 1962 | 13,302,628 | 1961 | 12,910,139 | 1960 | 12,523,036 |
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