Year	current international $
2000	28.4173828805587
2001	29.4103974948575
2002	33.2284798657013
2003	35.3689470187944
2004	38.3011063198578
2005	42.6984880321557
2006	47.4630962903004
2007	53.2643057078988
2008	55.6267916366416
2009	60.0650799674672
2010	66.4927132939321
2011	73.7608159050284
2012	82.2395271717563
2013	85.7397539969363
2014	91.1042042732953
2015	95.8113122398616
2016	108.921500484895
2017	114.354209635926
2018	121.530411923175
2019	128.638188479391
2020	133.912968065461
2021	153.574043772374