Year	current international $
2000	566.841923627706
2001	580.17400589668
2002	663.37662469149
2003	735.21395169086
2004	749.590078738246
2005	773.560303569353
2006	820.87943214322
2007	871.265216411258
2008	885.06939909265
2009	927.118414455622
2010	970.364839413963
2011	1014.06936257996
2012	1048.45012714147
2013	1111.31849519906
2014	1141.06143867319
2015	1181.99878910278
2016	1220.46419864636
2017	1270.18520254888
2018	1338.42438737909
2019	1496.56678240259
2020	1352.0585019979
2021	1460.58248366293