Year	current US$
1990	10609748466.5496
1991	5707194816.74033
1992	6406191125.1139
1993	9659421566.9402
1994	4282475397.72093
1995	7633776245.4288
1996	12899770480.9097
1997	11467430323.8019
1998	32663076289.264
1999	16880676507.3962
2000	16865312733.2315
2001	8830820099.30896
2002	11968283468.1311
2003	14343016582.5574
2004	30477791620.1708
2005	47183229182.3717
2006	57656754462.0697
2007	67470480471.51
2008	83619118689.0651
2009	49102798662.2193
2010	68442842383.4451
2011	90374952497.1469
2012	98237126205.4367
2013	117077373289.416
2014	118693125501.549
2015	109508669334.397
2016	106659210515.695
2017	108931812591.353
2018	118048148423.932
2019	94572939501.2191
2020	94645443592.9322