Year	constant 2011 international $
1990	22409.3267924971
1991	22710.7992520548
1992	23310.5023005816
1993	23818.8089489221
1994	25090.6788272664
1995	27367.3494494499
1996	29164.739880924
1997	32022.0470061371
1998	34444.0351790698
1999	37635.2228753202
2000	40644.7134149757
2001	42114.2280506747
2002	43861.9114885106
2003	44456.4239125087
2004	46584.944561564
2005	48179.129606664
2006	49275.7000064497
2007	50420.3631497595
2008	47189.4095922347
2009	44339.9200688764
2010	44897.1583385855
2011	44855.3247012361
2012	44766.472183248
2013	45133.2722264401
2014	48638.3359043432
2015	60304.488851186
2016	61820.5715398503
2017	66132.1423931759
2018	70855.3272289445