Year	current US$
2000	2475.654750156088
2001	2564.896393455478
2002	2780.4025461599654
2003	3165.109625513526
2004	3483.1043991756446
2005	3672.657812227181
2006	3877.165433281117
2007	4204.452630431288
2008	4501.222718130572
2009	4579.515157688327
2010	4733.241850003707
2011	5092.676670295426
2012	5109.927474022995
2013	5129.951456921588
2014	5285.134100874806
2015	5115.988655027156
2016	5284.127027381992
2017	5463.577401262585
2018	5737.311540996903
2019	5857.928678427057
2020	6370.478841313375
2021	6835.896849872081