Year	current US$
1990	32319320.3850427
1991	27587807.3601326
1992	15727705.3124578
1993	16457701.2868337
1994	16159159.274855
1995	15509529.8059482
1996	-5147925.31478862
1997	22437015.734099
1998	-13857830.6020033
1999	-18354173.6627625
2000	-971879.121980887
2001	3650177.70884375
2002	14609723.5558169
2003	17877565.9560339
2004	34550558.9476849
2005	46545797.6280612
2006	80826554.534595
2007	84830528.3364959
2008	157256458.516467
2009	93563195.1411383
2010	69174998.4667124
2011	89565714.9784167
2012	61690505.0300599
2013	108640633.427423
2014	146089855.285702
2015	161175302.720045
2016	183570627.998968
2017	181057436.403497
2018	297283447.885145
2019	408856267.57213
2020	374225501.709757