Year	constant 2010 US$
1991	62746.0685927251
1992	64152.5074373423
1993	67112.5537472378
1994	70447.9947081842
1995	75899.9705662596
1996	77214.8395070361
1997	79098.3588941118
1998	80901.5160530488
1999	80166.461317312
2000	82891.3984729901
2001	82746.5618869415
2002	82693.7060122944
2003	82330.383402629
2004	84280.952791661
2005	83071.3499068919
2006	82454.6108339113
2007	84448.1197627532
2008	84656.6102632702
2009	81776.5814807514
2010	82230.223524391
2011	82994.2203106375
2012	82902.9474239246
2013	82667.0975317305
2014	81700.8542459511
2015	81847.4999313738
2016	83178.1424977671
2017	83893.2083870878
2018	83983.721398361