Year	current US$
1990	11419996.3555135
1991	8467526.74690338
1992	14935389.4415664
1993	23025978.63711
1994	18819685.948611
1995	991162.948388372
2003	-25131582.4595449
2004	-10163103.7789223
2005	3213739.04085014
2006	18671270.2721533
2007	34916291.6312516
2008	34247834.2739314
2009	55065860.1611374
2010	51454313.0610811
2011	25426291.0868815
2012	34533257.0003498
2014	11560724.46473
2015	39241447.8886468
2016	-10887928.316621
2017	25527444.6428394
2018	50326596.692497
2019	30529287.4246543
2020	17761955.2042237
2021	70488304.7373206