Year	current US$
2000	2103.117601646382
2001	2182.2331668863712
2002	2365.6776552654514
2003	2693.3861305861083
2004	2969.760542453341
2005	3140.387346608978
2006	3322.914132954368
2007	3615.1390325633306
2008	3890.05600986067
2009	3937.1188014919203
2010	4070.0597202037047
2011	4385.186291498884
2012	4404.926426567989
2013	4433.310373913069
2014	4558.419309440243
2015	4381.379319369587
2016	4518.8966786795
2017	4686.017294020844
2018	4919.762528764064
2019	5022.114206192849
2020	5460.624728682381
2021	5832.722467658354