Year	constant 2011 international $
1994	729.292283118953
1995	695.961526731089
1996	725.107414332242
1997	664.15376419816
1998	642.101433296703
1999	579.479904974034
2000	565.382256411859
2001	521.854333266939
2002	530.934933545465
2003	547.718178539454
2004	563.774330980714
2005	572.114371274476
2006	589.453705831163
2007	601.866910048492
2008	601.869673227324
2009	613.852956112817
2010	634.312408938802
2011	647.789325702024
2012	665.176863932088
2013	669.060619402407
2014	712.182679934794
2015	748.978450348345
2016	794.147130832946
2017	787.182697135503
2018	800.021429535577