| Year | Value | | 2021 | 1,146,123.001 | | 2020 | 1,148,541.157 | | 2019 | 1,157,429.601 | | 2018 | 1,148,370.967 | | 2017 | 1,154,004.506 | | 2016 | 1,154,235.22 | | 2015 | 1,160,697 | | 2014 | 1,162,669.2 | | 2013 | 1,178,109.5 | | 2012 | 1,182,911.2 | | 2011 | 1,186,786.7 | | 2010 | 1,198,599 | | 2009 | 1,203,568.2 | | 2008 | 1,212,579.2 | | 2007 | 1,205,833.2 | | 2006 | 1,216,685.6 | | 2005 | 1,231,117.9 | | 2004 | 1,228,778.1 | | 2003 | 1,234,585.1 | | 2002 | 1,245,290.2 | | 2001 | 1,253,287.2 | | 2000 | 1,268,958.4 | | 1999 | 1,274,348.2 | | 1998 | 1,275,578.8 | | 1997 | 1,275,853.4 | | 1996 | 1,282,212 | | 1995 | 1,280,778 | | 1994 | 1,296,803 | | 1993 | 1,300,999 | | 1992 | 1,303,834 | | 1991 | 1,309,041 | | 1990 | 1,330,137 | | 1989 | 1,336,303 | | 1988 | 1,337,388 | | 1987 | 1,345,157 | | 1986 | 1,347,043 | | 1985 | 1,350,151 | | 1984 | 1,352,532 | | 1983 | 1,355,046 | | 1982 | 1,365,420 | | 1981 | 1,366,566 | | 1980 | 1,368,042 | | 1979 | 1,373,699 | | 1978 | 1,378,018 | | 1977 | 1,377,709 | | 1976 | 1,379,022 | | 1975 | 1,386,742 | | 1974 | 1,391,006 | | 1973 | 1,394,365 | | 1972 | 1,399,699 | | 1971 | 1,404,520 | | 1970 | 1,424,346 | | 1969 | 1,438,778 | | 1968 | 1,437,860 | | 1967 | 1,445,734 | | 1966 | 1,446,722 | | 1965 | 1,449,838 | | 1964 | 1,453,675 | | 1963 | 1,459,971 | | 1962 | 1,462,551 | | 1961 | 1,463,240 |
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