Year | Value | 2022 | 39,287,408 | 2021 | 38,623,183 | 2020 | 37,558,601 | 2019 | 35,846,994 | 2018 | 33,759,604 | 2017 | 31,268,334 | 2016 | 28,744,776 | 2015 | 26,467,876 | 2014 | 24,375,164 | 2013 | 22,711,968 | 2012 | 21,371,450 | 2011 | 20,409,375 | 2010 | 19,735,263 | 2009 | 19,224,988 | 2008 | 18,871,084 | 2007 | 18,654,990 | 2006 | 18,441,907 | 2005 | 18,299,465 | 2004 | 18,301,697 | 2003 | 18,320,997 | 2002 | 18,166,307 | 2001 | 17,782,399 | 2000 | 17,294,496 | 1999 | 16,777,052 | 1998 | 16,217,836 | 1997 | 15,695,521 | 1996 | 15,228,865 | 1995 | 14,795,987 | 1994 | 14,447,663 | 1993 | 14,082,456 | 1992 | 13,662,938 | 1991 | 13,347,728 | 1990 | 13,055,868 | 1989 | 12,648,705 | 1988 | 12,207,438 | 1987 | 11,865,711 | 1986 | 11,591,423 | 1985 | 11,309,289 | 1984 | 11,081,133 | 1983 | 10,923,195 | 1982 | 10,688,122 | 1981 | 10,352,458 | 1980 | 10,033,592 | 1979 | 9,754,426 | 1978 | 9,492,716 | 1977 | 9,295,717 | 1976 | 9,195,065 | 1975 | 9,110,625 | 1974 | 8,956,398 | 1973 | 8,778,355 | 1972 | 8,630,937 | 1971 | 8,453,139 | 1970 | 8,194,194 | 1969 | 7,872,523 | 1968 | 7,522,530 | 1967 | 7,204,187 | 1966 | 6,927,847 | 1965 | 6,714,658 | 1964 | 6,643,248 | 1963 | 6,655,992 | 1962 | 6,640,531 | 1961 | 6,640,365 | 1960 | 6,712,403 |
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