Year	current US$
1990	661136200.928265
1991	706174145.957641
1992	700339801.752187
1993	749617376.334667
1994	877596090.595873
1995	857455751.320251
1996	995945608.425532
1997	1003630810.59067
1998	980413713.205426
1999	1003109434.24435
2000	1022744780.31542
2001	1185563911.54515
2002	1278491189.297
2003	1506833812.07008
2004	1493185666.51529
2005	1290345994.824
2006	1643584245.15637
2007	1676536414.09207
2008	1520626326.14846
2009	1496314911.45502
2010	1786997474.52639
2011	1644140663.19963
2012	1535171093.63374
2013	1622411081.45273
2014	1554242135.99365
2015	1488972096.98148
2016	1641158058.15373
2017	1609683350.27906
2018	1746588552.50937
2019	1660109827.4606
2020	1603345411.87068
2021	1681827686.26702