Year | Value | 2021 | 11,984,861.809 | 2020 | 11,926,447.188 | 2019 | 12,010,389.634 | 2018 | 11,973,544.429 | 2017 | 12,115,326.138 | 2016 | 11,850,536.281 | 2015 | 11,914,933.665 | 2014 | 12,184,858.678 | 2013 | 12,177,665.211 | 2012 | 12,323,907.713 | 2011 | 12,442,865.986 | 2010 | 12,304,436.227 | 2009 | 12,444,110.973 | 2008 | 12,545,428.313 | 2007 | 12,694,487.886 | 2006 | 12,834,277.287 | 2005 | 12,876,957.431 | 2004 | 12,728,843.559 | 2003 | 13,166,391.989 | 2002 | 13,266,331.101 | 2001 | 13,383,906.067 | 2000 | 13,422,839.689 | 1999 | 13,421,558.53 | 1998 | 13,534,468.241 | 1997 | 13,513,430.218 | 1996 | 13,567,106.42 | 1995 | 13,586,628.218 | 1994 | 13,685,554.422 | 1993 | 13,620,411.921 | 1992 | 13,717,702.327 | 1991 | 13,716,522.617 | 1990 | 13,745,787.303 | 1989 | 13,777,848.266 | 1988 | 13,815,716.041 | 1987 | 13,809,622.958 | 1986 | 13,815,067.937 | 1985 | 13,998,218.524 | 1984 | 13,995,596.562 | 1983 | 13,963,034.05 | 1982 | 14,024,041.394 | 1981 | 14,062,271.882 | 1980 | 14,065,040.566 | 1979 | 14,051,211.287 | 1978 | 14,083,363 | 1977 | 14,056,334 | 1976 | 14,151,383.9 | 1975 | 14,137,092 | 1974 | 14,144,966 | 1973 | 14,134,426.5 | 1972 | 14,165,105 | 1971 | 14,166,835.667 | 1970 | 14,123,539.985 | 1969 | 14,333,552.189 | 1968 | 14,357,906.611 | 1967 | 14,119,997.639 | 1966 | 14,101,484.257 | 1965 | 14,097,265.91 | 1964 | 14,077,547.096 | 1963 | 14,072,868.782 | 1962 | 14,059,514.315 | 1961 | 14,059,937.445 |
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