Year | Value | 2021 | 13,347,985.526 | 2020 | 13,331,842.438 | 2019 | 13,293,491.152 | 2018 | 13,292,840.119 | 2017 | 13,297,240.654 | 2016 | 13,282,291.389 | 2015 | 13,284,824.167 | 2014 | 13,273,935.052 | 2013 | 13,301,176.569 | 2012 | 13,317,987.873 | 2011 | 13,322,571.279 | 2010 | 13,324,307.513 | 2009 | 13,311,297.663 | 2008 | 13,327,977.891 | 2007 | 13,411,399.939 | 2006 | 13,393,331.478 | 2005 | 13,380,614.005 | 2004 | 13,534,853.277 | 2003 | 13,494,971.231 | 2002 | 13,487,414.906 | 2001 | 13,467,544.787 | 2000 | 13,431,666.932 | 1999 | 13,417,250.182 | 1998 | 13,317,384.042 | 1997 | 13,218,081.322 | 1996 | 13,124,608.325 | 1995 | 13,040,461.627 | 1994 | 12,944,263.576 | 1993 | 12,857,856.633 | 1992 | 13,007,099.785 | 1991 | 12,997,010.138 | 1990 | 12,988,148.591 | 1989 | 12,895,813.664 | 1988 | 12,810,446.436 | 1987 | 12,741,096.209 | 1986 | 12,616,243.982 | 1985 | 12,542,047.755 | 1984 | 12,447,782.127 | 1983 | 12,351,644.7 | 1982 | 12,342,817.473 | 1981 | 12,318,112.845 | 1980 | 12,352,825.618 | 1979 | 12,355,019.391 | 1978 | 12,323,174.164 | 1977 | 12,299,012.936 | 1976 | 12,279,931.709 | 1975 | 12,273,500.482 | 1974 | 12,270,049.255 | 1973 | 12,262,248.027 | 1972 | 12,240,966.8 | 1971 | 12,195,508.8 | 1970 | 12,189,454.8 | 1969 | 12,183,340.8 | 1968 | 12,204,031.8 | 1967 | 12,201,242.8 | 1966 | 12,204,243.8 | 1965 | 12,204,765.8 | 1964 | 12,210,846.8 | 1963 | 12,221,367.8 | 1962 | 12,237,458.8 | 1961 | 12,241,208.8 |
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