Year	current international $
2000	27.1512713300886
2001	35.5689891897626
2002	31.2262656917466
2003	26.347306167091
2004	26.2225514911644
2005	27.6149228676187
2006	28.7564769115971
2007	34.974081788229
2008	34.4336884507362
2009	36.4140756206995
2010	43.4382743338172
2011	40.1170874703475
2012	40.5768677036513
2013	41.1069376866213
2014	41.3223539869889
2015	44.8803609812849
2016	43.3599874109021
2017	45.0067865737843
2018	43.3855440531291
2019	41.4025477411064
2020	39.2601912076822
2021	38.2416895843077