Year	constant 2011 international $
1990	13324657194.792
1991	13739374873.4706
1992	15126087164.66
1993	15024876281.8538
1994	15560840754.6284
1995	16153695271.8011
1996	17306177020.7016
1997	18608095559.3348
1998	20119922191.5914
1999	21734509257.4808
2000	23234485896.6197
2001	24203021013.2808
2002	26123944526.6256
2003	29896500622.8828
2004	32273287822.2987
2005	34277116214.8709
2006	38804457812.6945
2007	40649303110.4178
2008	42028020595.9925
2009	40182263723.3492
2010	41517610640.5509
2011	41395401723.1008
2012	41931049498.2478
2013	42772187413.8846
2014	42357432289.5813
2015	43110499085.2193
2016	40304347470.0732
2017	39538564868.1418
2018	39815334824.0157