Year	current US$
1991	3617953450295.306
1992	4036912132886.2544
1993	3798485535448.8667
1994	4013321682845.162
1995	4621313173482.861
1996	4713578987315.699
1997	4322588373639.847
1998	4453004789907.07
1999	4449926373995.157
2000	4074540040671.945
2001	4171473532403.5376
2002	4594139384819.844
2003	5692398521937.054
2004	6532433230510.401
2005	6789324751947.24
2006	7181161845044.082
2007	8276658198614.419
2008	9220745914095.484
2009	8672062451039.045
2010	8390956128717.333
2011	9031259102309.127
2012	8389597105488.173
2013	8791978063687.987
2014	9008735735627.094
2015	7739823495331.425
2016	7925088530508.193
2017	8376854465047.79
2018	9058743938311.04
2019	8889065363027.217
2020	8732316745239.137
2021	9687438331605.768
2022	9314999796462.111
2023	10199463540641.076