Year	current US$
2000	43.17952283723682
2001	38.24037333178839
2002	35.389393824298786
2003	50.84605407927948
2004	62.5592083924407
2005	69.48528633040661
2006	76.04112404346611
2007	85.1519403196774
2008	87.54614379762847
2009	91.1372255372862
2010	105.42661796810026
2011	113.68971389581557
2012	110.50101366619884
2013	108.33514472530878
2014	101.82343930630311
2015	93.7748478025413
2016	88.74456591456732
2017	92.93286294913392
2018	92.96425086975951
2019	89.94454602595287
2020	81.4924179824656
2021	92.28638644957094