Year | Value | 2022 | 13,039,382 | 2021 | 13,056,211 | 2020 | 13,298,129 | 2019 | 13,545,441 | 2018 | 13,773,332 | 2017 | 13,940,768 | 2016 | 14,047,674 | 2015 | 14,098,428 | 2014 | 14,135,018 | 2013 | 14,177,063 | 2012 | 14,260,168 | 2011 | 14,431,520 | 2010 | 14,692,082 | 2009 | 14,917,475 | 2008 | 15,103,721 | 2007 | 15,220,332 | 2006 | 15,297,419 | 2005 | 15,350,578 | 2004 | 15,378,297 | 2003 | 15,388,799 | 2002 | 15,412,926 | 2001 | 15,528,360 | 2000 | 15,698,073 | 1999 | 15,880,788 | 1998 | 16,103,147 | 1997 | 16,347,085 | 1996 | 16,514,536 | 1995 | 16,619,211 | 1994 | 16,709,246 | 1993 | 16,734,229 | 1992 | 16,645,133 | 1991 | 16,532,265 | 1990 | 16,430,578 | 1989 | 16,295,176 | 1988 | 16,154,262 | 1987 | 16,065,591 | 1986 | 15,996,079 | 1985 | 15,926,833 | 1984 | 15,860,625 | 1983 | 15,777,791 | 1982 | 15,685,651 | 1981 | 15,581,414 | 1980 | 15,486,400 | 1979 | 15,448,945 | 1978 | 15,462,264 | 1977 | 15,443,451 | 1976 | 15,308,807 | 1975 | 14,877,845 | 1974 | 14,289,493 | 1973 | 13,765,280 | 1972 | 13,229,865 | 1971 | 12,828,271 | 1970 | 12,878,626 | 1969 | 13,127,847 | 1968 | 13,259,696 | 1967 | 13,402,620 | 1966 | 13,511,059 | 1965 | 13,472,762 | 1964 | 13,352,737 | 1963 | 13,196,599 | 1962 | 13,070,380 | 1961 | 13,043,098 | 1960 | 13,095,816 |
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