Year	current US$
1998	897455245.5357143
1999	870864653.8411119
2000	1034061909.753811
2001	1217862708.2213862
2002	1356512418.5475495
2003	1807140110.8221192
2004	2180314129.625031
2005	2282062056.95809
2006	2767363567.9337597
2007	3723496304.407336
2008	4612753771.788487
2009	4166797860.5168104
2010	4114165282.397532
2011	4580993271.289257
2012	4156682443.873998
2013	4552823114.570122
2014	4654833219.967904
2015	4143543186.700041
2016	4415192363.250356
2017	4956345528.611419
2018	5571825861.240262
2019	5604334042.315012
2020	4845904669.648708
2021	5982455401.554572
2022	6353915382.64158
2023	7477458122.005817