Year	constant 2015 US$
1990	14027925778.242226
1991	13628271188.114145
1992	11647276194.909273
1993	10598122532.060686
1994	10891647163.428875
1995	9335751502.837667
1996	9511553234.413677
1997	10827985335.211624
1998	11921669303.230497
1999	12790840374.21219
2000	13481575535.581491
2001	14469782904.007793
2002	14919304361.076975
2003	15584892190.33023
2004	16684462478.192879
2005	18048092478.771763
2006	19509392568.914497
2007	20409160787.854595
2008	21393560998.20287
2009	21568696826.82356
2010	23562589257.72031
2011	25379063187.407665
2012	25132381307.57758
2013	26560087492.18056
2014	27357391654.55513
2015	26952798538.74076
2016	26266010224.50124
2017	26629804034.519203
2018	28405059542.6843
2019	28817423954.84084
2020	28431287667.83913
2021	29225417012.80491
2022	27726722513.21689
2023	27997795043.752304