Year	constant 2011 international $
2007	5648.01093029198
2008	5918.23830272612
2009	5776.01128761804
2010	5679.68186721522
2011	5863.22321702082
2012	5832.12510527463
2013	5849.97736765131
2014	5720.69910371563
2015	5782.03277425213
2016	5988.53871537654
2017	6163.82835004175
2018	6513.49076475985