Year	constant 2011 international $
1990	9588.18846890582
1991	9348.65001603042
1992	8951.47844404907
1993	8855.06698342379
1994	8951.19127380181
1995	9023.36099082311
1996	9210.46915600355
1997	9286.03941492269
1998	9167.35489066195
1999	9244.46365750366
2000	9498.18893808721
2001	9555.69533045595
2002	9841.50899389266
2003	9985.2541172365
2004	10388.0912251085
2005	10797.7429503198
2006	11257.2159486224
2007	11544.5601392586
2008	11776.6410701231
2009	11534.635789887
2010	11722.5110164825
2011	11867.6881078253
2012	11922.8085788974
2013	12037.7866164824
2014	12062.85216737
2015	12042.2913118954
2016	11877.4639015466
2017	11844.6031396797
2018	11757.5195931819