Year	current US$
2000	63.41754032874981
2001	63.91818918038345
2002	63.07236287880011
2003	70.68497997623093
2004	81.86270409617417
2005	96.19145438855695
2006	110.92652300490701
2007	133.2769216527391
2008	159.9090315521826
2009	162.4755626970785
2010	186.01930956282
2011	214.76918736494596
2012	227.87613189894364
2013	244.37683874986308
2014	249.58761590128157
2015	237.35888688690184
2016	235.93394018457903
2017	256.1484427064464
2018	268.7862344044499
2019	275.84285027148786
2020	281.7793009200996
2021	321.5307627494928