Year	constant 2010 US$
1991	1335.62666549148
1992	1365.86176954603
1993	1413.12912676382
1994	1460.80988095581
1995	1542.5986273041
1996	1621.45499882927
1997	1654.06849725194
1998	1679.65953205295
1999	1708.57920470775
2000	1745.85578581705
2001	1801.70254264006
2002	1862.61391502303
2003	1937.11420449436
2004	2084.5569012176
2005	2247.45639280901
2006	2428.23513824866
2007	2568.81319516522
2008	2723.71581836709
2009	2853.64447447351
2010	3059.63767212316
2011	3313.99490455559
2012	3487.6187021596
2013	3848.31140506052
2014	4204.69648469512
2015	4387.60190095404
2016	4570.3186454969
2017	4874.31699200535
2018	4876.23956535673