Year	current US$
1990	406004679.608392
1991	463258707.948674
1992	789238454.431138
1993	1037426584.55343
1994	1376099139.70539
1995	1378122692.17059
1996	1036146600.42735
1997	1182575947.61577
1998	1661635469.50246
1999	1411535873.41377
2000	1354973104.53282
2001	1679433626.67302
2002	1374165706.70648
2003	1284571286.11054
2004	1341713064.49692
2005	1641185494.1095
2006	1785211392.16874
2007	1170209154.3297
2008	846142334.529951
2009	914968801.167683
2010	1193978275.48658
2011	1242778862.32809
2012	1092672601.44161
2013	513166127.23362
2014	821363018.166606
2015	983251087.000125
2016	1225120635.96891
2017	1468194640.96052
2018	1428741739.45606
2019	2092897870.1244
2020	2093387523.42345
2021	1583154065.9716