Year	current US$
2000	355.6359154
2001	331.87360571
2002	335.80695901
2003	453.39674573
2004	500.01819162
2005	483.09480068
2006	528.27398745
2007	589.58053235
2008	593.88783439
2009	572.01261075
2010	587.01861684
2011	622.38209249
2012	639.66281389
2013	659.01851684
2014	718.49849743
2015	682.47341848
2016	618.21445093
2017	614.33788524
2018	695.66921426
2019	709.10241265
2020	665.13877297
2021	775.39633468