Year	constant 2015 US$
1990	10020095847.059162
1991	7755554185.860607
1992	9981398236.203619
1993	9292681757.949121
1994	7341218589.460312
1995	5549961253.022264
1996	5272463191.255808
1997	5225011021.297346
1998	4237483937.839346
1999	5144305501.617609
2000	4979687725.043217
2001	5831214326.1059065
2002	6017813184.671953
2003	6150205074.7674
2004	6144054870.389471
2005	6580282765.8945055
2006	6975099731.848176
2007	7595883608.472628
2008	7124938823.636739
2009	8065430748.449338
2010	7129840782.788797
2011	9019248589.486076
2012	7449899335.084264
2013	8284288059.786207
2014	8391983805.737982
2015	8685703238.476068
2016	9154731213.672253
2017	9447682612.444437
2018	9806694551.916033
2019	9796887857.147715
2020	10374904240.143723
2021	10146656347.083767
2022	11070002217.215328
2023	10217612045.958954