Year	constant 2010 US$
1989	51533773.3773377
1990	52848844.8844884
1991	53665639.8973231
1992	53309130.9130913
1993	55669013.5680235
1994	56357022.3689036
1995	57998313.1646498
1996	58800513.3846718
1997	65465933.2599927
1998	67867033.3700037
1999	75449798.3131647
2000	80398166.483315
2001	85097689.7689769
2002	89506050.6050605
2003	99623469.013568
2004	111568096.809681
2005	113026549.321599
2006	101877814.448112
2007	97326292.6292629
2008	100967510.084342
2009	106732746.607994
2010	100476714.3381
2011	98276494.3160983
2012	105610561.056106
2013	104877154.382105
2014	109277594.426109
2015	116611661.166117
2016	112343527.686102
2017	110594866.153282
2018	108852116.459096