Year	constant 2010 US$
1991	1358080973.22567
1992	1445726202.62744
1993	1518529895.71764
1994	1707563263.26507
1995	1594713189.97624
1996	1676474590.16117
1997	1841011731.05507
1998	1958041317.04814
1999	2083002666.86616
2000	2201542524.85212
2001	2452135275.24455
2002	2583551609.90407
2003	2694146736.10666
2004	2950641916.34816
2005	3249768046.19704
2006	3567325681.24066
2007	3858938130.3702
2008	4243232875.10757
2009	4572376026.72032
2010	5041121318.84182
2011	5519108760.27585
2012	6074592315.09605
2013	6579677791.13599
2014	7136643976.29742
2015	7666129776.70527
2016	7883619143.72627
2017	8072436963.87328
2018	8329261807.05003