Year	constant 2010 US$
1990	1631184467.36
1991	1887814068.72147
1992	2408785531.26602
1993	2686508408.78622
1994	2991602362.6716
1995	3406943340.40412
1996	2563374996.99187
1997	2676592436.95149
1998	3496475377.65203
1999	3298301125.9437
2000	3305365469.38193
2001	3418693560.9126
2002	3347157591.43141
2003	3620652837.64417
2004	3505958958.58451
2005	3719130204.6366
2006	4181046182.41674
2007	4215748829.38032
2008	3967019646.72925
2009	2857444203.29174
2010	3075570000
2011	3406461951.82907
2012	3501492938.23061
2013	3703611593.0012
2014	3349108458.1825
2015	3650863157.38522
2016	3780892223.21291
2017	3889235931.556
2018	4152727064.36395