Year	current US$
2000	6618284739.957576
2001	6212249119.950857
2002	5898080943.245682
2003	4770796893.30756
2004	5983111006.627238
2005	7124110611.79252
2006	7472090589.308204
2007	9274321965.410267
2008	10203552398.917572
2009	11095109816.392496
2010	11303603637.127903
2011	12546711056.36927
2012	13160482099.23839
2013	14097964628.988422
2014	14568448756.620426
2015	14265686251.209967
2016	13542011460.117397
2017	14355481019.888033
2018	16238542108.235415
2019	14506144112.770473
2020	14087009412.061369
2021	20383091230.686745
2022	20108891472.362858
2023	19885267982.630764