Year	constant 2010 US$
1991	23440.4667251095
1992	23931.076987235
1993	27991.9015091355
1994	29211.4763725375
1995	32828.0359995371
1996	30303.7304370021
1997	32206.5206478273
1998	30795.4237044718
1999	33229.0871660806
2000	36530.1515151311
2001	37431.6702854496
2002	39329.2465644363
2003	39864.0938943124
2004	41730.5711224581
2005	44020.275267516
2006	45501.483504348
2007	48375.5885984186
2008	47621.688444503
2009	51548.6730905433
2010	54316.856656316
2011	58798.6937063777
2012	58116.7264449648
2013	64075.9143835348
2014	61407.6998172778
2015	63628.0151915741
2016	74242.9206274283
2017	75551.3001582568
2018	77016.3457366184