Year	constant 2010 US$
1990	2122.67611513349
1991	1959.98112688866
1992	1762.69811379506
1993	1928.4424565226
1994	2104.67419666889
1995	2026.99737199242
1996	2080.69356148542
1997	2134.30559555497
1998	2191.66596153735
1999	2255.97446346089
2000	2501.1005708417
2001	2239.63613663343
2002	2454.90696299232
2003	2559.55671630672
2004	2746.46713886289
2005	2938.8815642198
2006	3044.03528368452
2007	3272.10972372107
2008	3425.64297847734
2009	3309.67242366603
2010	3431.81658199714
2011	3245.1466989043
2012	3281.2282762524
2013	3339.4053381325
2014	3409.63119748945
2015	3558.02664485396
2016	3693.51409298984
2017	3717.00740372091
2018	3822.57105333621