Year	current US$
2000	10.312511000129893
2001	10.824059658499493
2002	13.126256863584912
2003	16.27231785769227
2004	19.049662557374766
2005	22.72389546860331
2006	28.02349321341446
2007	36.522007604532
2008	52.532800416299835
2009	67.69577497951407
2010	80.20916999916368
2011	103.03144057942117
2012	125.32900720266062
2013	145.6493371964437
2014	163.60572819220607
2015	180.5722749472334
2016	178.36441674230403
2017	191.7513679547237
2018	216.90693746223778
2019	229.89139316914807
2020	244.06305062074566
2021	278.77903061366055