Year	current US$
1990	23265790.0619917
1991	17420584.7723996
1992	19825992.85756
1993	18088410.3155952
1994	18451044.1206541
1995	20331897.8294871
1996	24671818.6520629
1997	27648687.7876348
1998	30129703.7758259
1999	21478719.0839792
2000	28213649.1121494
2001	32409424.3293567
2002	35670388.2354387
2003	39714348.3421642
2004	45007368.3362223
2005	46532492.4675398
2006	53461861.2896132
2007	54081818.6210244
2008	72193521.2736703
2009	48330584.7230889
2010	73731863.7125492
2011	75764102.0089416
2012	72393210.7283683
2013	73378625.7167335
2014	74749081.4076892
2015	82063849.0826907
2016	77209845.1342913
2017	84936799.9895446
2018	97946864.1078366
2019	106025190.128865
2020	90279506.7660702
2021	105263089.528971