Year	constant 2010 US$
1991	714.164877466986
1992	750.108620483794
1993	802.524976240906
1994	854.746154482303
1995	921.97996674434
1996	984.623561635268
1997	1019.97893294452
1998	1048.66236996478
1999	1062.51289297344
2000	1075.98960950564
2001	1104.23941111845
2002	1129.15406875739
2003	1170.88654626708
2004	1288.5451041808
2005	1408.48823603586
2006	1541.44804378773
2007	1658.0793458166
2008	1798.20634007155
2009	1943.04867262231
2010	2097.22747792438
2011	2294.86755958709
2012	2475.26600195187
2013	2739.17454262381
2014	3024.80908466598
2015	3236.33505343697
2016	3442.24486440315
2017	3664.7587403148
2018	3830.38317648166