Year	current US$
1990	11875247.0108083
1991	11912605.7634792
1992	10046955.8399797
1993	8833874.80529069
1994	13325754.0871391
1995	14981398.4006747
1996	21647531.2043907
1997	12582636.3584446
1998	20542979.847154
1999	30354222.8376896
2000	23573246.2976511
2001	22900072.2806233
2002	27004701.6616889
2003	38453576.5717449
2004	39271135.2200389
2005	40715930.9090974
2006	38502349.7516377
2007	38629872.1978896
2008	42135252.7045966
2009	77881283.2529693
2010	75160781.2931239
2011	75167534.8365593
2012	69596909.0265079
2013	56569425.5873392
2014	53536504.6853846
2015	63634260.1773819
2016	82596573.1396253
2017	77453379.6411986
2018	90502900.1938152
2019	96646037.5725673
2020	95861577.5962695
2021	101456591.14703