Year	current US$
2000	221.22417573625555
2001	252.29548286774627
2002	298.3156143044243
2003	373.1844308846472
2004	447.0153498471779
2005	523.0055495419797
2006	580.2969991148684
2007	729.665251390561
2008	927.8453191529843
2009	842.6952689973905
2010	869.706933127359
2011	921.1159898903063
2012	864.2274371777295
2013	910.7821198566845
2014	931.2483852123726
2015	815.7516439515199
2016	852.6656508065263
2017	939.0303724109378
2018	1053.681819480277
2019	1090.0360196332158
2020	1182.0864732194625
2021	1389.8830751551902