Year	current US$
2000	1071.1564178031927
2001	1106.125274063297
2002	1237.677348565461
2003	1547.3150333038286
2004	1761.1160834438567
2005	1848.2041469157953
2006	1944.576361933917
2007	2216.3102157068074
2008	2527.9943215649105
2009	2485.7432584970365
2010	2432.465176895315
2011	2607.4421194329684
2012	2431.1377410739456
2013	2557.9405097844046
2014	2613.7269955477527
2015	2257.05414468419
2016	2322.6500367798094
2017	2454.1808669287834
2018	2648.6546027047075
2019	2610.4767610023528
2020	2862.4744203302857
2021	3224.569048612624