Year	current US$
2000	12.17346042
2001	18.66494506
2002	67.5727368
2003	74.6346276
2004	89.36225248
2005	98.74605426
2006	105.53848631
2007	127.54172564
2008	153.81329041
2009	154.81682951
2010	162.24117034
2011	178.60904433
2012	177.75503644
2013	210.35220767
2014	214.30486315
2015	171.29666083
2016	170.94346313
2017	176.12503086
2018	187.8849247
2019	182.50386384
2020	189.75259325
2021	203.56086222