Year	current US$
2000	25.60347834
2001	25.34433502
2002	24.45291461
2003	25.56688923
2004	24.45469601
2005	29.06593843
2006	35.01071329
2007	41.74155096
2008	47.66366254
2009	54.83901122
2010	53.16824702
2011	58.06883952
2012	65.47718792
2013	69.43839186
2014	79.56633083
2015	90.44802279
2016	96.71992377
2017	103.32590645
2018	102.61599609
2019	99.73233001
2020	99.68291335
2021	125.58068173