Year	constant 2010 US$
1991	1200.83519303187
1992	1223.8360277302
1993	1254.49801800271
1994	1286.38335837579
1995	1325.33559930988
1996	1394.72387988287
1997	1402.88119351542
1998	1420.26389426047
1999	1445.52646932673
2000	1442.27968157883
2001	1489.38798281252
2002	1520.84646236804
2003	1583.82761269243
2004	1664.4038726201
2005	1757.45723243115
2006	1866.64478498641
2007	1952.59286471043
2008	2033.71435926418
2009	2105.87768428008
2010	2229.63529713421
2011	2391.9603105819
2012	2512.59500125567
2013	2678.08724981883
2014	2807.28028780185
2015	2895.9155382466
2016	2991.39149289372
2017	3139.87995763202
2018	3164.68026001906