| Year | Value | | 2022 | 1,919,348,000 | | 2021 | 1,901,911,604 | | 2020 | 1,882,531,620 | | 2019 | 1,861,598,514 | | 2018 | 1,840,534,093 | | 2017 | 1,818,931,519 | | 2016 | 1,797,072,648 | | 2015 | 1,775,545,180 | | 2014 | 1,754,030,304 | | 2013 | 1,731,683,901 | | 2012 | 1,708,706,729 | | 2011 | 1,684,898,004 | | 2010 | 1,660,546,144 | | 2009 | 1,636,411,632 | | 2008 | 1,612,709,085 | | 2007 | 1,589,454,615 | | 2006 | 1,565,892,885 | | 2005 | 1,541,263,909 | | 2004 | 1,515,703,001 | | 2003 | 1,489,358,080 | | 2002 | 1,462,070,145 | | 2001 | 1,434,314,654 | | 2000 | 1,406,945,493 | | 1999 | 1,379,874,856 | | 1998 | 1,352,849,350 | | 1997 | 1,326,007,987 | | 1996 | 1,299,407,301 | | 1995 | 1,272,877,742 | | 1994 | 1,246,157,499 | | 1993 | 1,219,180,082 | | 1992 | 1,192,390,433 | | 1991 | 1,166,480,561 | | 1990 | 1,141,312,704 | | 1989 | 1,116,147,699 | | 1988 | 1,091,004,504 | | 1987 | 1,066,371,857 | | 1986 | 1,042,169,001 | | 1985 | 1,018,142,776 | | 1984 | 994,345,688 | | 1983 | 970,938,323 | | 1982 | 948,043,890 | | 1981 | 926,216,545 | | 1980 | 904,993,069 | | 1979 | 884,031,584 | | 1978 | 863,852,185 | | 1977 | 844,199,483 | | 1976 | 825,140,213 | | 1975 | 806,592,758 | | 1974 | 788,213,169 | | 1973 | 770,083,670 | | 1972 | 752,397,791 | | 1971 | 736,135,444 | | 1970 | 720,399,195 | | 1969 | 704,112,818 | | 1968 | 688,013,461 | | 1967 | 672,401,853 | | 1966 | 657,382,046 | | 1965 | 642,649,029 | | 1964 | 627,867,470 | | 1963 | 613,149,540 | | 1962 | 598,784,274 | | 1961 | 584,794,755 | | 1960 | 571,192,428 |
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