Year	current international $
2000	13.3607600595054
2001	14.7340476441696
2002	14.9916631787472
2003	17.8921688551857
2004	20.7234812602805
2005	25.9961130788701
2006	53.2238651296465
2007	51.176454625066
2008	26.1837189261759
2009	33.5630672601781
2010	40.8572335583302
2011	47.9500814472738
2012	48.6804308666278
2013	47.260301089991
2014	37.4634830043758
2015	30.8544377779724
2016	33.8749954026169
2017	38.1674074294579
2018	42.3961875697839
2019	37.1586012159783
2020	33.690580791788
2021	44.3986270537604