Year	current US$
2000	32.12799690832728
2001	35.21230301402816
2002	36.33408635599807
2003	35.1470954420448
2004	40.15645382946217
2005	44.97123723555987
2006	53.97374249843093
2007	66.0050967643129
2008	82.37311510926263
2009	90.32613862715428
2010	94.29436404917435
2011	108.92510855243594
2012	106.64245816729485
2013	108.18983796912264
2014	118.35725388699667
2015	107.01307087941488
2016	121.30091486672801
2017	118.03165425668814
2018	121.84032196503136
2019	110.6095550221159
2020	109.16825111988359
2021	124.90535772367052