| Year | Value | | 2022 | 1,840,142,950 | | 2021 | 1,800,115,038 | | 2020 | 1,760,225,807 | | 2019 | 1,721,049,412 | | 2018 | 1,683,139,540 | | 2017 | 1,646,401,123 | | 2016 | 1,610,801,192 | | 2015 | 1,576,577,999 | | 2014 | 1,543,705,308 | | 2013 | 1,511,524,240 | | 2012 | 1,479,458,433 | | 2011 | 1,446,532,038 | | 2010 | 1,412,935,479 | | 2009 | 1,379,938,069 | | 2008 | 1,348,468,901 | | 2007 | 1,317,765,261 | | 2006 | 1,287,126,660 | | 2005 | 1,257,055,686 | | 2004 | 1,227,782,005 | | 2003 | 1,198,886,913 | | 2002 | 1,169,939,269 | | 2001 | 1,141,278,463 | | 2000 | 1,113,543,189 | | 1999 | 1,086,608,976 | | 1998 | 1,060,585,198 | | 1997 | 1,035,144,384 | | 1996 | 1,009,945,067 | | 1995 | 984,763,682 | | 1994 | 960,049,790 | | 1993 | 935,450,423 | | 1992 | 910,973,883 | | 1991 | 887,648,593 | | 1990 | 865,261,065 | | 1989 | 843,017,002 | | 1988 | 821,033,507 | | 1987 | 799,517,958 | | 1986 | 778,231,383 | | 1985 | 757,368,589 | | 1984 | 736,892,756 | | 1983 | 717,058,129 | | 1982 | 697,360,428 | | 1981 | 678,220,841 | | 1980 | 660,197,240 | | 1979 | 642,478,486 | | 1978 | 624,921,608 | | 1977 | 608,293,115 | | 1976 | 592,770,490 | | 1975 | 577,786,305 | | 1974 | 562,921,889 | | 1973 | 548,273,358 | | 1972 | 534,191,661 | | 1971 | 521,456,513 | | 1970 | 509,164,374 | | 1969 | 496,196,119 | | 1968 | 483,257,179 | | 1967 | 470,626,522 | | 1966 | 458,450,981 | | 1965 | 446,683,333 | | 1964 | 435,254,053 | | 1963 | 424,253,319 | | 1962 | 413,669,974 | | 1961 | 403,461,263 | | 1960 | 393,625,600 |
|