Year	constant 2015 US$
2003	6424.343915730416
2004	7026.871805812866
2005	7864.50810245502
2006	9170.352010683426
2007	9983.3210990488
2008	10578.283800914827
2009	9844.335261801261
2010	10954.83047372372
2011	11878.859388943814
2012	12081.781044096433
2013	12611.02559077344
2014	12434.273569963403
2015	11864.1627477337
2016	12651.52263582599
2017	13581.299142038768
2018	14056.991734590672
2019	15092.250552209503
2020	14644.555815089645
2021	17169.57406837851
2022	18770.02232906509