Year	constant 2011 international $
1990	864.761025721673
1991	866.266919485802
1992	970.098077981482
1993	951.624075788505
1994	500.67740629676
1995	694.005867101183
1996	750.480497780591
1997	800.728718681492
1998	803.20987305793
1999	778.832704062415
2000	795.99300697194
2001	828.638018421951
2002	918.285494328723
2003	920.251635128277
2004	974.888329822379
2005	1052.49170009097
2006	1124.54523291367
2007	1186.80490336832
2008	1281.52009752565
2009	1325.86827124076
2010	1386.17228652447
2011	1455.29403115826
2012	1538.36523077429
2013	1564.24899061313
2014	1634.29526213632
2015	1730.55142805471
2016	1784.64577211651
2017	1848.67359769932
2018	1958.61187735806