Year	constant 2011 international $
1990	31287.0698103409
1991	32646.5618381478
1992	33022.5755518938
1993	32492.5185329959
1994	33175.7085774638
1995	33653.1296358835
1996	33830.3056593287
1997	34405.5192090796
1998	35081.304207874
1999	35755.2993074406
2000	36764.5629268974
2001	37325.0525470646
2002	37262.3512875562
2003	36977.3460076486
2004	37418.0924996579
2005	37703.9329399406
2006	39143.1662435764
2007	40473.5274498896
2008	40989.4431148599
2009	38784.4524824906
2010	40428.7210307617
2011	42692.5197566424
2012	42822.0994035797
2013	42914.4761126655
2014	43666.765146204
2015	44043.1779351549
2016	44668.6962980606
2017	45462.0283308103
2018	45959.3618959186