Year	constant 2010 US$
1991	835.690896152532
1992	789.975577116021
1993	817.100267422515
1994	799.075404431296
1995	802.48234314366
1996	851.523098426791
1997	859.594397792957
1998	860.308537711942
1999	879.33797330618
2000	862.004849642165
2001	875.274442125731
2002	997.681744091297
2003	1004.67705267127
2004	1023.09501243776
2005	1052.2629771515
2006	1083.37194204659
2007	1118.69677324176
2008	1166.17573774467
2009	1188.27242014265
2010	1229.9084038482
2011	1246.18440313943
2012	1301.4469472712
2013	1315.23982550472
2014	1352.41884307345
2015	1373.76726780009
2016	1379.92820673921
2017	1412.75139495969
2018	1593.84356261794