Year	constant 2011 international $
1990	2339.1379586878
1991	2278.80202451197
1992	2185.12065606944
1993	2278.34712277452
1994	2031.77645680088
1995	2038.51033159385
1996	2108.91095291693
1997	2130.5199565063
1998	2064.46765113577
1999	2102.07488885045
2000	2126.25764084021
2001	2181.45204611801
2002	2221.67178516144
2003	2315.8017234774
2004	2415.59011717611
2005	2523.60344384401
2006	2652.09272773809
2007	2797.88959083293
2008	2934.29304328589
2009	3115.93757898372
2010	3338.09718592616
2011	3419.01045990353
2012	3566.38252131215
2013	3631.0038583767
2014	3684.68550667149
2015	3677.73501885216
2016	3703.01286555297
2017	3717.66716609554
2018	3747.97245489578