| Year | Value | | 2022 | 3,314,730,415 | | 2021 | 3,284,225,391 | | 2020 | 3,248,939,491 | | 2019 | 3,211,379,220 | | 2018 | 3,172,418,217 | | 2017 | 3,132,721,034 | | 2016 | 3,092,384,143 | | 2015 | 3,052,418,474 | | 2014 | 3,012,600,624 | | 2013 | 2,972,534,640 | | 2012 | 2,932,326,531 | | 2011 | 2,892,331,811 | | 2010 | 2,853,199,983 | | 2009 | 2,815,076,381 | | 2008 | 2,777,573,966 | | 2007 | 2,740,780,889 | | 2006 | 2,704,612,276 | | 2005 | 2,668,128,092 | | 2004 | 2,631,482,689 | | 2003 | 2,594,893,917 | | 2002 | 2,558,306,691 | | 2001 | 2,521,505,698 | | 2000 | 2,484,655,435 | | 1999 | 2,447,861,607 | | 1998 | 2,410,821,063 | | 1997 | 2,373,312,996 | | 1996 | 2,335,458,929 | | 1995 | 2,297,364,175 | | 1994 | 2,259,301,616 | | 1993 | 2,221,051,598 | | 1992 | 2,182,578,609 | | 1991 | 2,143,878,078 | | 1990 | 2,104,412,490 | | 1989 | 2,063,612,208 | | 1988 | 2,023,593,796 | | 1987 | 1,983,299,568 | | 1986 | 1,943,311,035 | | 1985 | 1,904,171,015 | | 1984 | 1,865,968,396 | | 1983 | 1,828,583,712 | | 1982 | 1,791,249,677 | | 1981 | 1,754,513,289 | | 1980 | 1,719,752,689 | | 1979 | 1,685,902,491 | | 1978 | 1,652,394,631 | | 1977 | 1,619,817,825 | | 1976 | 1,587,815,563 | | 1975 | 1,555,712,775 | | 1974 | 1,523,544,753 | | 1973 | 1,490,729,828 | | 1972 | 1,457,737,867 | | 1971 | 1,425,087,057 | | 1970 | 1,391,881,765 | | 1969 | 1,358,951,667 | | 1968 | 1,326,717,154 | | 1967 | 1,295,693,897 | | 1966 | 1,265,646,520 | | 1965 | 1,235,577,261 | | 1964 | 1,206,959,925 | | 1963 | 1,178,927,040 | | 1962 | 1,151,122,624 | | 1961 | 1,129,264,805 | | 1960 | 1,113,842,457 |
|