Year	constant 2015 US$
1991	8055594683765.707
1992	8126483583000.235
1993	8106853071600.194
1994	8254269203752.506
1995	8407093117208.06
1996	8612210840452.749
1997	8895514746648.936
1998	9170366624788.203
1999	9421241481598.578
2000	9835870723700.377
2001	10088390996390.244
2002	10267959486689.32
2003	10454687173323.354
2004	10760883273648.557
2005	11085121643878.227
2006	11501538539390.795
2007	11997327247378.541
2008	12228882966167.102
2009	11934063220279.518
2010	12169193131465.158
2011	12444397763521.21
2012	12588630829299.695
2013	12730653274442.416
2014	12970975363668.15
2015	13187381935104.873
2016	13435016368259.564
2017	13810296383087.434
2018	14115706608431.709
2019	14414887510795.215
2020	13563464109647.03
2021	14458772008008.475
2022	15067517164903.84
2023	15298607649032.234