Year	current US$
2000	161.54912038839012
2001	162.67874066213523
2002	179.69541826509243
2003	226.9532901393533
2004	265.95400396610233
2005	278.2874326871342
2006	304.4408860489088
2007	350.0516413147675
2008	396.84851153149464
2009	373.55474909468796
2010	378.2611806797356
2011	415.72949188718655
2012	404.3242919751908
2013	424.8526399622721
2014	428.63857631370905
2015	369.77166501158655
2016	365.36984636123685
2017	388.06422145507776
2018	412.9854656907851
2019	411.91598159474427
2020	399.0778120525601
2021	458.7663270451209