| Year | Value | | 2021 | 8,221,154.217 | | 2020 | 8,212,479.097 | | 2019 | 8,198,280.578 | | 2018 | 8,186,480.696 | | 2017 | 8,166,673.152 | | 2016 | 8,139,648.752 | | 2015 | 8,112,659.411 | | 2014 | 8,090,143.649 | | 2013 | 8,065,491.565 | | 2012 | 8,024,821.489 | | 2011 | 7,966,418.849 | | 2010 | 7,930,281.446 | | 2009 | 7,889,259.301 | | 2008 | 7,841,077.698 | | 2007 | 7,814,013.379 | | 2006 | 7,777,963.364 | | 2005 | 7,744,828.579 | | 2004 | 7,665,079.78 | | 2003 | 7,645,519.309 | | 2002 | 7,582,643.343 | | 2001 | 7,562,638.64 | | 2000 | 7,527,239.362 | | 1999 | 7,491,096.15 | | 1998 | 7,450,919.716 | | 1997 | 7,427,010.61 | | 1996 | 7,391,301.518 | | 1995 | 7,355,517.972 | | 1994 | 7,318,816.082 | | 1993 | 7,278,953.284 | | 1992 | 7,413,390.602 | | 1991 | 7,392,879.6 | | 1990 | 7,375,378.2 | | 1989 | 7,362,302.3 | | 1988 | 7,337,176.3 | | 1987 | 7,291,960.3 | | 1986 | 7,269,094.3 | | 1985 | 7,226,998.3 | | 1984 | 7,190,312.3 | | 1983 | 7,188,966.3 | | 1982 | 7,178,530.3 | | 1981 | 7,174,034.3 | | 1980 | 7,164,684.3 | | 1979 | 7,156,324.3 | | 1978 | 7,156,604.3 | | 1977 | 7,142,464.3 | | 1976 | 7,140,704.3 | | 1975 | 7,135,147.3 | | 1974 | 7,126,457.3 | | 1973 | 7,129,986.3 | | 1972 | 7,131,134.3 | | 1971 | 7,121,184.3 | | 1970 | 7,114,124.3 | | 1969 | 7,109,974.3 | | 1968 | 7,103,134.3 | | 1967 | 7,089,004.3 | | 1966 | 7,082,734.3 | | 1965 | 7,075,694.3 | | 1964 | 7,065,164.3 | | 1963 | 7,054,094.3 | | 1962 | 7,036,414.3 | | 1961 | 7,026,224.3 |
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