Year	current US$
1990	246471963.469225
1991	188808396.72439
1992	201474954.444393
1993	217902245.19717
1994	217751607.995338
1995	236339203.341257
1996	242898033.955148
1997	282612635.050854
1998	317217847.139804
1999	328748659.037434
2000	334851467.094194
2001	372611345.583024
2002	408698025.820851
2003	454088411.856967
2004	465517405.304567
2005	499060999.465103
2006	529959091.614904
2007	589234295.64549
2008	583184070.951383
2009	560910942.808354
2010	556132574.717916
2011	567634226.341246
2012	540929540.345157
2013	549854824.10763
2014	546813085.273748
2015	577228807.894596
2016	606187006.167098
2017	651431580.300757
2018	643706802.873107
2019	673667789.888195
2020	619487513.123183
2021	726760700.578749