Year	current US$
2000	444.5741677724804
2001	449.9331898122942
2002	502.7834017371199
2003	637.9526751458578
2004	743.3845099540979
2005	769.4443982771136
2006	833.4561436872871
2007	949.4219272817982
2008	1059.7972509251113
2009	1024.784604072187
2010	996.2345511101331
2011	1088.239586733265
2012	1027.481055605191
2013	1067.2301278047664
2014	1089.7989730101447
2015	925.5959687130107
2016	918.1749334095509
2017	966.6280629222763
2018	1041.1190006166994
2019	1034.3264541295828
2020	1021.3722260466608
2021	1151.9603237158062