Year	current US$
1993	55899661.7191194
1994	76302470.4776157
1995	79202284.3689322
1996	72677082.1030539
1997	66909554.1964874
1998	54725796.6768108
1999	57117600.7092379
2000	54155946.8091609
2001	57328526.0009819
2002	59051047.666839
2003	58627287.9225857
2004	60618422.0645128
2005	63930105.0375492
2006	66496557.1296318
2007	71154728.0355386
2008	77316703.8527496
2009	73697826.5930794
2010	77281292.3591191
2011	84806587.5085207
2012	87619969.5837612
2013	88020566.3204318
2014	97734032.5361067
2015	102722894.986871
2016	118817647.09571
2017	123188234.340367
2018	131388474.194905
2019	138127140.191042
2020	134173203.081664
2021	134416938.682101