Year	constant 2010 US$
1995	13362.1182624246
1996	14055.4412462775
1997	14908.1392864436
1998	15945.0160201178
1999	16176.451480802
2000	17210.2858503935
2001	18366.797847752
2002	18985.538115012
2003	20635.336315781
2004	21961.4790673782
2005	23723.2363756173
2006	25016.9581029921
2007	26913.6943281054
2008	26250.423094618
2009	26135.1994685281
2010	26075.4261527387
2011	27361.7262443139
2012	27650.8038687062
2013	27907.5292612063
2014	28306.9076193574
2015	28575.04882794
2016	29507.8574601124
2017	29579.8917134751
2018	30709.7090718562