Year	current US$
1990	49682155.8615448
1991	58410196.0015753
1992	60683613.2734776
1993	65202409.2771456
1994	67653828.4423983
1995	79646005.783179
1996	92479526.6893454
1997	92051918.6223051
1998	109391367.686095
1999	107038575.269748
2000	112854596.448598
2001	120904618.905325
2002	120110461.8841
2003	135322966.948053
2004	134360237.823828
2005	140993450.84534
2006	133409412.646133
2007	127221047.245329
2008	141434887.599365
2009	143610875.05242
2010	164610683.883321
2011	172408083.497823
2012	173992268.862432
2013	187163983.995852
2014	200677712.747677
2015	212809648.01662
2016	230552181.239826
2017	199433101.880174
2018	200595173.209198
2019	214089334.074497
2020	208364816.52705
2021	216207007.036595