Year | Value | 2022 | 45,811,607 | 2021 | 42,816,327 | 2020 | 39,716,146 | 2019 | 36,517,838 | 2018 | 33,799,946 | 2017 | 31,653,106 | 2016 | 30,215,170 | 2015 | 29,522,279 | 2014 | 29,365,715 | 2013 | 29,510,941 | 2012 | 29,739,260 | 2011 | 29,653,941 | 2010 | 29,320,210 | 2009 | 28,917,421 | 2008 | 28,393,192 | 2007 | 27,766,497 | 2006 | 27,082,246 | 2005 | 26,480,746 | 2004 | 26,026,039 | 2003 | 25,653,250 | 2002 | 25,239,213 | 2001 | 24,769,590 | 2000 | 24,243,672 | 1999 | 23,680,972 | 1998 | 22,989,992 | 1997 | 22,142,320 | 1996 | 21,302,426 | 1995 | 20,403,104 | 1994 | 19,411,598 | 1993 | 18,432,793 | 1992 | 17,568,531 | 1991 | 16,882,453 | 1990 | 16,409,400 | 1989 | 16,188,673 | 1988 | 16,149,246 | 1987 | 16,205,541 | 1986 | 16,220,681 | 1985 | 16,102,909 | 1984 | 15,814,518 | 1983 | 15,418,506 | 1982 | 15,039,567 | 1981 | 14,715,822 | 1980 | 14,434,340 | 1979 | 14,096,862 | 1978 | 13,750,288 | 1977 | 13,428,437 | 1976 | 13,085,135 | 1975 | 12,679,466 | 1974 | 12,180,706 | 1973 | 11,592,423 | 1972 | 11,029,718 | 1971 | 10,515,471 | 1970 | 10,061,311 | 1969 | 9,730,190 | 1968 | 9,474,129 | 1967 | 9,226,000 | 1966 | 8,945,833 | 1965 | 8,642,329 | 1964 | 8,379,322 | 1963 | 8,223,915 | 1962 | 8,095,869 | 1961 | 8,037,006 | 1960 | 8,124,811 |
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