Year	constant 2010 US$
1991	32834.212516845
1992	32790.9858372
1993	37363.5553706486
1994	39733.0276593938
1995	40521.4329928266
1996	39429.4774692239
1997	39908.6450906491
1998	42360.2628936546
1999	43325.4415300404
2000	44885.9294892472
2001	45890.0392107525
2002	51300.6603440723
2003	52662.1156724097
2004	62289.9196241355
2005	69034.4204948468
2006	70963.8528273147
2007	83575.5278808552
2008	91821.3511264566
2009	91623.1576610112
2010	104917.902881736
2011	115928.021601347
2012	127205.32112711
2013	122300.273463638
2014	127114.279931509
2015	133659.301534697
2016	121545.663802874
2017	125039.642461808
2018	126104.639600868