| Year | Value | | 2022 | 2,432,176,151 | | 2021 | 2,422,282,219 | | 2020 | 2,407,349,460 | | 2019 | 2,389,807,714 | | 2018 | 2,370,442,529 | | 2017 | 2,349,710,071 | | 2016 | 2,327,554,498 | | 2015 | 2,304,997,932 | | 2014 | 2,281,753,612 | | 2013 | 2,257,760,665 | | 2012 | 2,233,559,750 | | 2011 | 2,209,988,616 | | 2010 | 2,187,604,832 | | 2009 | 2,166,031,050 | | 2008 | 2,144,330,346 | | 2007 | 2,123,037,699 | | 2006 | 2,102,301,762 | | 2005 | 2,080,860,427 | | 2004 | 2,058,812,471 | | 2003 | 2,036,608,931 | | 2002 | 2,014,413,761 | | 2001 | 1,991,948,213 | | 2000 | 1,969,016,145 | | 1999 | 1,945,736,389 | | 1998 | 1,921,558,360 | | 1997 | 1,896,604,083 | | 1996 | 1,871,216,474 | | 1995 | 1,845,591,215 | | 1994 | 1,819,704,334 | | 1993 | 1,793,490,033 | | 1992 | 1,766,985,411 | | 1991 | 1,739,816,636 | | 1990 | 1,711,381,894 | | 1989 | 1,682,319,075 | | 1988 | 1,652,955,902 | | 1987 | 1,623,100,314 | | 1986 | 1,593,375,412 | | 1985 | 1,564,270,847 | | 1984 | 1,535,914,965 | | 1983 | 1,508,061,553 | | 1982 | 1,480,171,671 | | 1981 | 1,452,575,256 | | 1980 | 1,426,322,711 | | 1979 | 1,400,869,124 | | 1978 | 1,375,796,378 | | 1977 | 1,351,156,140 | | 1976 | 1,326,481,999 | | 1975 | 1,301,443,690 | | 1974 | 1,276,266,528 | | 1973 | 1,250,349,662 | | 1972 | 1,224,041,610 | | 1971 | 1,197,607,569 | | 1970 | 1,170,471,085 | | 1969 | 1,143,771,291 | | 1968 | 1,117,704,753 | | 1967 | 1,092,648,489 | | 1966 | 1,068,306,252 | | 1965 | 1,043,825,312 | | 1964 | 1,020,627,149 | | 1963 | 997,733,591 | | 1962 | 974,863,023 | | 1961 | 957,775,292 | | 1960 | 946,945,232 |
|