Year	current US$
1976	1728633321.7374258
1977	2315135891.709358
1978	2767083555.755447
1979	2775273112.989341
1980	3884588225.6930604
1981	4909034078.681361
1982	5414069724.380169
1983	5413762440.096606
1984	5311591862.544672
1985	4546136089.846633
1986	6027359436.216308
1987	6802636893.428069
1988	6691966442.219652
1989	6922557848.61156
1990	7213779274.2248125
1991	9747376475.451323
1992	10493818579.561888
1993	8355388978.672616
1994	9994734376.983099
1995	10376645637.842897
1996	9882378213.889572
1997	10014832721.876097
1998	10801039881.824749
1999	10518098824.441738
2000	16179283620.198116
2001	16556791616.283064
2002	18290139769.40565
2003	20870035134.02766
2004	23417226557.234673
2005	22508568742.67152
2006	24995945010.241142
2007	25912786975.007504
2008	22174249003.541363
2009	24973889499.517822
2010	28700729932.659557
2011	34878597882.818535
2012	34328976805.5706
2013	36851039845.049644
2014	38486563041.68197
2015	44827353236.668816
2016	44805649552.95021
2017	43748832022.613815
2018	42317238285.48473
2019	36503433840.11502
2020	43686637668.7881
2021	48149969159.37207
2022	38443528857.30429
2023	43834923344.23856