Year	current US$
1990	867857142.8571429
1991	920754716.981132
1992	563421828.9085546
1993	345458779.6925943
1994	298892405.06329113
1995	451880866.680782
1996	376090693.7394247
1997	294994780.67266196
1998	331387349.10671175
1999	275876076.10971797
2000	216207104.15412402
2001	257314753.61184928
2002	271477530.2056739
2003	376302481.86512756
2004	399089987.30183524
2005	490026365.549016
2006	607111066.9147055
2007	722879386.7682135
2008	1025410080.959564
2009	923791877.1972343
2010	1105123651.3086305
2011	1554732209.1118724
2012	1780544516.4623911
2013	1801276301.9776742
2014	2166411108.9530535
2015	1785849595.2616186
2016	1458406582.71304
2017	1528630922.4301739
2018	1535293065.3922858
2019	1732136863.1449347
2020	1845631374.4060953
2021	2006455121.4314454
2022	2457131331.2619123