Year	constant 2011 international $
1990	1708.03422631986
1991	1732.29564818565
1992	1779.39667033021
1993	1835.81917181078
1994	1937.01003262916
1995	2025.87792125722
1996	2120.42390932206
1997	2221.66495533365
1998	2267.47914722301
1999	2390.97603454727
2000	2487.64100731809
2001	2588.95052793936
2002	2700.41948313488
2003	2821.42146581958
2004	2955.4504008821
2005	3116.27116007188
2006	3330.21452168643
2007	3523.61077997796
2008	3735.44536848042
2009	3949.0518398672
2010	4216.8303435899
2011	4485.18112656039
2012	4772.26685973673
2013	5079.03423236477
2014	5384.60572080263
2015	5689.15496281865
2016	5995.60515615222
2017	6307.62808212764
2018	6614.4882394434