Year	current US$
1990	8890909090.90909
1991	5348000000.000001
1992	445009225.0922509
1993	1575393848.4621155
1994	1194096387.4603958
1995	2413479413.9404945
1996	3167324031.418664
1997	3953203901.7658315
1998	4461488756.7846985
1999	4768012931.5209465
2000	5178072731.052009
2001	5562874939.4674425
2002	6042087549.014363
2003	7024617521.223932
2004	8166818629.56601
2005	11734666354.988941
2006	18470079299.789017
2007	28219348252.700077
2008	43831089798.203545
2009	41022888018.28354
2010	49741091452.77847
2011	61441003132.89079
2012	65735414850.218605
2013	70472288892.48618
2014	73082959455.4451
2015	51379123217.290474
2016	35591412539.276886
2017	39321618331.875984
2018	44853080880.9559
2019	46318529411.76471
2020	42422882352.94118
2021	53687352941.176476
2022	73522647058.82353
2023	69157059470.58824