Year	current US$
1975	202627097.66843227
1976	202690388.26230162
1977	245539166.83276856
1978	321101774.9714115
1979	438572067.8168349
1980	603440560.8313031
1981	565753492.7658728
1982	631531845.0753244
1983	740714960.4733257
1984	823546959.6778203
1985	811763536.0214787
1986	715905135.9817034
1987	659623129.3193457
1988	748670014.4185354
1989	852533187.4906777
1990	867846666.3352062
1991	819569432.7052156
1992	808900000
1993	872470541.4408592
1994	973599164.7193358
1995	1038930045.2443694
1996	1134340973.4997265
1997	1161686471.4363844
1998	1194252473.5245862
1999	1230497688.0624473
2000	1322800000
2001	1251500000
2002	1211100000
2003	1378750000
2004	1435900000
2005	1711700000
2006	1938700000
2007	2043900000
2008	2090350000
2009	1904950000
2010	1763300000
2011	1766750000
2012	1811200000
2013	1914200000
2014	1879250000
2015	1892295050
2016	1765692250
2017	1781072150
2018	2105486600.0000002
2019	2242258300
2020	1395725450
2021	1494848050
2022	2002299850