Year	current international $
2000	10.3900178346919
2001	8.88427933769412
2002	21.5488662207528
2003	31.2413696960793
2004	17.8113530896125
2005	27.7053369682238
2006	32.8131369642889
2007	32.0496827849367
2008	23.6973312555082
2009	23.5416624406858
2010	19.2431702289746
2011	13.4311083760329
2012	21.964654567804
2013	14.2600039811135
2014	19.1742146227952
2015	39.9902913841673
2016	31.5171699840156
2017	28.4152488711959
2018	21.7374209406733
2019	20.0947012543062
2020	23.4483011502161
2021	67.5237357619699