Year	current international $
2000	65.2747699428702
2001	60.6086129513322
2002	61.4309889744081
2003	77.8766428773374
2004	79.8613160923653
2005	79.5813609156712
2006	103.278683814354
2007	130.897988692109
2008	138.27903691809
2009	130.080113125518
2010	122.640066141549
2011	140.742898679015
2012	145.870144568076
2013	206.073783152756
2014	172.89443997101
2015	206.194472293091
2016	226.624097855817
2017	202.505749246593
2018	137.728220914438
2019	137.725092275799
2020	83.0507835739962
2021	72.4049601718473