Year	current US$
2000	30.749642677917993
2001	26.69951100041839
2002	29.283193773405053
2003	35.90252345770079
2004	47.72387027676717
2005	61.62892160137822
2006	71.18905682621282
2007	86.47590980375726
2008	94.14439041847446
2009	74.63130093162938
2010	89.58440514404488
2011	99.55284120185306
2012	105.36774100161362
2013	117.32997558010184
2014	109.35428154400593
2015	94.81163548193412
2016	92.11788014738107
2017	95.45440863695492
2018	98.0112004315749
2019	103.75714796404986
2020	104.1655852555427
2021	126.12729154760456