Year	current US$
1976	37984154.757528864
1977	41290616.99511852
1978	49593906.73842824
1979	93010035.29328164
1980	112563628.62350301
1981	132885767.66311556
1982	139893801.28505853
1983	134042894.73645325
1984	118188041.74947622
1985	127205026.51894718
1986	152034472.5482095
1987	178833798.4820736
1988	201503290.5023751
1989	225399323.3224407
1990	304748009.8259289
1991	317347600.10194147
1992	372528417.1889338
1993	402439586.8944577
1994	385676688.16013294
1995	407250866.2508663
1996	369315157.2466247
1997	464676339.1746921
1998	515211113.43380016
1999	483995226.95367336
2000	500334557.44207424
2001	525412519.4492844
2002	535217890.1112457
2003	573839621.6650493
2004	663899836.3636364
2005	716020872.7272727
2006	876861082.1038566
2007	775840971.4284009
2008	831963395.6746168
2009	707540914.948927
2010	769862949.6765637
2011	840452120.6309781
2012	854066157.6145004
2013	914412074.4560288
2014	1192450384.336496
2015	1152028173.5100656
2016	1333721559.7700658
2017	1425537934.8617897
2018	1599311622.4958785
2019	1618467169.0449467
2020	1369675121.4016798
2021	1587935118.790359
2022	1937116619.4147677
2023	2037512636.3316712