Year	current US$
1995	90462199765.6539
1996	96300359003.6029
1997	96178564587.30153
1998	84825247841.29626
1999	93913760915.1823
2000	99512318217.23781
2001	96705224014.848
2002	103358888809.12279
2003	105075371030.05606
2004	132264416244.08414
2005	141893108741.26962
2006	141249054183.55515
2007	161445264469.7869
2008	176496571780.26624
2009	172427062051.43176
2010	208275998085.5924
2011	240643949391.6212
2012	281948257173.9888
2013	312074553280.35455
2014	422824519621.12317
2015	443264056745.03534
2016	454334855734.54144
2017	478590172378.53906
2018	516961744350.9099
2019	495578206469.99097