Year	current US$
2000	0.11162884626112908
2001	0.1578620183957107
2002	0.2335781526227764
2003	0.27551175792132676
2004	1.0053701560442634
2005	0.3223975198929135
2006	0.3761396385353037
2007	1.1199344992793576
2008	1.276375892833709
2009	0.5403972806422536
2010	0.5320155695474885
2011	0.7136469923307749
2012	0.6386125055236487
2013	0.7922738153180018
2014	0.9180491218647447
2015	0.7538840638077614
2016	0.8293953313151493
2017	0.9419657427179176
2018	0.9921485457124334
2019	0.9862105178820095
2020	0.9376009772883448
2021	3.0026763875913614