Year	constant 2011 international $
1990	35042.1143492936
1991	35568.8296875032
1992	36821.2319088363
1993	37372.4479453252
1994	37441.9435662628
1995	38316.6334396355
1996	38912.1827375619
1997	41019.5573197282
1998	42064.1312563145
1999	41954.9933851966
2000	43966.3184287238
2001	45396.8633679523
2002	44130.0766933108
2003	42028.6871124683
2004	41538.5583584899
2005	41458.6750502257
2006	42509.2814295738
2007	43125.4176162903
2008	45070.4592619137
2009	45743.1556939458
2010	45336.2400748723
2011	41942.1205555181
2012	42619.5001179032
2013	41330.9928928901
2014	39700.3967949803
2015	39243.1816572617
2016	39248.8783984961
2017	37328.5883620756
2018	36830.8941882267