Year	constant 2010 US$
1991	5127.11270492853
1992	5402.22993857572
1993	5135.43094221489
1994	4861.61415594235
1995	4912.53477641585
1996	5721.77265404236
1997	6071.76439057348
1998	6247.15028225497
1999	4870.9303109817
2000	6284.16340941398
2001	6549.13248124608
2002	5770.8271201182
2003	5012.46318637096
2004	6930.89977422819
2005	6634.25415521401
2006	6831.54659616599
2007	6868.57701087946
2008	7084.79393766155
2009	7828.6582456736
2010	8030.32318761001
2011	9307.69297560029
2012	9368.43201986532
2013	9290.78401285408
2014	9657.71769273283
2015	9675.48685658894
2016	10143.6068822374
2017	10214.5299301908
2018	10192.9463043288