| Year | Value | | 2021 | 8,539,885.477 | | 2020 | 8,528,882.357 | | 2019 | 8,512,539.489 | | 2018 | 8,498,237.692 | | 2017 | 8,466,785.101 | | 2016 | 8,439,885.534 | | 2015 | 8,416,148.756 | | 2014 | 8,385,501.197 | | 2013 | 8,361,673.326 | | 2012 | 8,316,580.873 | | 2011 | 8,256,127.306 | | 2010 | 8,223,770.826 | | 2009 | 8,183,660.954 | | 2008 | 8,137,619.305 | | 2007 | 8,112,954.899 | | 2006 | 8,071,408.287 | | 2005 | 8,037,614.375 | | 2004 | 7,950,532.852 | | 2003 | 7,932,185.268 | | 2002 | 7,871,470.138 | | 2001 | 7,848,578.281 | | 2000 | 7,809,601.23 | | 1999 | 7,779,307.654 | | 1998 | 7,738,531.156 | | 1997 | 7,720,448.227 | | 1996 | 7,682,133.518 | | 1995 | 7,641,791.305 | | 1994 | 7,595,600.749 | | 1993 | 7,549,939.284 | | 1992 | 7,677,017.935 | | 1991 | 7,652,498.267 | | 1990 | 7,633,663.2 | | 1989 | 7,618,600.633 | | 1988 | 7,593,513.967 | | 1987 | 7,545,136.3 | | 1986 | 7,519,678.633 | | 1985 | 7,475,889.967 | | 1984 | 7,435,715.3 | | 1983 | 7,428,526.633 | | 1982 | 7,418,522.217 | | 1981 | 7,411,643.8 | | 1980 | 7,399,811.383 | | 1979 | 7,390,403.967 | | 1978 | 7,392,256.55 | | 1977 | 7,375,944.133 | | 1976 | 7,371,671.717 | | 1975 | 7,361,342.3 | | 1974 | 7,354,182.3 | | 1973 | 7,355,021.3 | | 1972 | 7,351,229.3 | | 1971 | 7,333,449.3 | | 1970 | 7,324,844.3 | | 1969 | 7,320,169.3 | | 1968 | 7,312,629.3 | | 1967 | 7,299,929.3 | | 1966 | 7,292,449.3 | | 1965 | 7,290,909.3 | | 1964 | 7,283,879.3 | | 1963 | 7,273,079.3 | | 1962 | 7,250,689.3 | | 1961 | 7,238,329.3 |
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