Year	current US$
1990	631205731.421432
1991	804421120.372572
1992	763970522.072059
1993	832347314.98739
1994	925480943.194713
1995	917228473.510698
1996	1167374954.80148
1997	1053795795.01973
1998	1022184438.89464
1999	1007014655.89598
2000	976340752.170433
2001	1052821119.6812
2002	1085024705.49949
2003	1244593043.34954
2004	1185414669.27572
2005	1167965578.68599
2006	1425567870.96409
2007	1375480978.79656
2008	1345375918.80188
2009	1323705680.30113
2010	1375185003.10544
2011	1285603437.01591
2012	1187497293.13636
2013	1291722396.95956
2014	1206086503.92135
2015	1171844025.266
2016	1268396086.33345
2017	1239628325.11892
2018	1297991885.00446
2019	1211133978.16186
2020	1154098846.96211
2021	1213645247.87568