Year	current US$
2000	561510464.815602
2001	620843661.351386
2002	719249675.721563
2003	994002678.02599
2004	1219266771.2042
2005	1735385965.62748
2006	2204899672.45347
2007	2793987205.38346
2008	2486019536.76383
2009	1577495679.23816
2010	1554480005.11781
2011	2897647439.77493
2012	2900293875.09753
2013	3008261878.36794
2014	3381026233.39034
2015	2759512419.93066
2016	2966687848.63407
2017	3927915653.4319
2018	4606320111.50582
2019	4729192086.01754
2020	4424523256.38605
2021	6034969103.46677