Year	current US$
2000	143.73281122016436
2001	141.27830248280654
2002	122.76538208447242
2003	129.4927470159506
2004	144.21981984866986
2005	179.17512599196425
2006	206.0847125397401
2007	243.4939449129311
2008	272.6082236853755
2009	261.53983856423434
2010	305.7833766578575
2011	344.14735310754816
2012	342.04839851288267
2013	347.57672006928914
2014	350.5742648737933
2015	302.1947776720328
2016	293.38030062588695
2017	339.4797218458605
2018	327.43319989537304
2019	320.9289413901817
2020	264.7562671879395
2021	297.16782203128537