Year	current US$
2000	37.53394253412878
2001	38.93483705678887
2002	42.9604759325094
2003	49.48055354166583
2004	59.01055460464475
2005	72.43521219076372
2006	88.22509954364776
2007	112.09885953870224
2008	147.82893643594988
2009	156.4096069295833
2010	179.49595690177924
2011	214.3963640792076
2012	233.4579133734507
2013	259.3283243618152
2014	274.1546689877211
2015	261.83290070610735
2016	258.6371059776759
2017	282.7057197634708
2018	309.10776824411585
2019	323.5796241022272
2020	345.6307270025308
2021	394.59706348318