Year	current US$
2000	1957.6838258385337
2001	2142.080704546357
2002	2315.025250572292
2003	2498.476905489808
2004	2686.4337024487504
2005	2862.329090046707
2006	3089.212897570297
2007	3269.034195660227
2008	3454.268429303343
2009	3626.160225571761
2010	3799.3112384200886
2011	3913.5158660473558
2012	4026.6711448075985
2013	4145.773637306634
2014	4404.403620848476
2015	4607.923832551242
2016	4748.437930747726
2017	4901.282352011301
2018	5110.862633058129
2019	5319.697700749022
2020	6443.337620833859
2021	6455.112311250723