Year	current US$
2000	13.79175097
2001	14.80139731
2002	16.86726559
2003	18.95620536
2004	21.71889191
2005	24.44344224
2006	40.56130493
2007	49.47194292
2008	59.73667168
2009	66.7112405
2010	67.19021876
2011	75.17244069
2012	74.34884795
2013	79.57817524
2014	72.97199573
2015	63.10687269
2016	63.72606971
2017	66.10082361
2018	70.44567923
2019	71.85352898
2020	81.55077123
2021	85.91186974