Year	current US$
1970	319198124.8712137
1971	326369925.1291785
1972	357033528.3528353
1973	407199976.7198231
1974	476450050.11693954
1975	529463126.18542904
1976	577724426.9413309
1977	703384466.8089864
1978	835685863.8743455
1979	1031941916.1676648
1980	1293274049.2170024
1981	1318932504.4404974
1982	1400847916.6666667
1983	1310705053.1122804
1984	1242933699.5995903
1985	1268954795.021962
1986	1548933690.190081
1987	1873133200.7952287
1988	2172586998.83223
1989	2296015151.515152
1990	2822478184.5197897
1991	2977638114.2098274
1992	3159663077.1301656
1993	2892766535.654127
1994	3215141088.265364
1995	3915466926.070039
1996	4196815150.0714626
1997	4019325992.6593256
1998	4271847717.979887
1999	4319284330.606974
2000	4400265182.154831
2001	4259625297.6775155
2002	4340873715.0563545
2003	5603653892.034767
2004	6487919614.966829
2005	7086236594.087414
2006	7255059772.496715
2007	8228788979.132616
2008	9256575521.552893
2009	8775163856.279493
2010	9030693206.78234
2011	9497110507.546804
2012	9124606696.649876
2013	9747438329.151611
2014	10232653840.407772
2015	10008272394.354473
2016	10198843572.724123
2017	10878738550.54367
2018	12522270673.495966
2019	13049125182.241423
2020	13023020770.182089
2021	14920904371.047186
2022	15914804978.380379
2023	16886577797.273779