Year	current international $
2000	15.472427943819017
2001	3.3092717553806206
2002	10.852345393643562
2003	13.487932801800786
2004	17.41755043252477
2005	18.84049660945501
2006	31.007844967189396
2007	30.659371054425154
2008	30.821972133174267
2009	31.622415354909553
2010	32.33655313695576
2011	28.110033673187665
2012	15.827976578676378
2013	16.373156937421705
2014	17.105807378405924
2015	11.673588588102286
2016	13.475421490660848
2017	11.708209209159433
2018	12.941168906020804
2019	11.254992583513788
2020	19.078630308489835
2021	23.397832068866705