Year	constant 2015 US$
1989	6846453127.820857
1990	6933920736.852327
1991	7541961386.223473
1992	7997639192.950821
1993	7774737974.600231
1994	7996228407.427205
1995	9340689516.50968
1996	9019034597.89741
1997	8561946069.966019
1998	7709842676.668331
1999	8786258009.520653
2000	9830892333.62584
2001	9958992418.141178
2002	10533777468.22473
2003	10772229422.802242
2004	10695313375.47241
2005	10560536919.235025
2006	10948117663.984695
2007	9893004909.53286
2008	9278051449.687738
2009	8788938463.42378
2010	8103623056.461783
2011	7860495068.895901
2012	7955688037.572489
2013	7504164632.092993
2014	7568484205.523121
2015	6750982427.226198
2016	6623047322.416709
2017	6443884829.029222
2018	6627331906.481184
2019	7613535757.299506
2020	8186448400.280933
2021	8903854900.65357
2022	9519291014.577713
2023	9306527075.5563