Year	constant 2015 US$
1991	2997.4769046520933
1992	3179.4546239836254
1993	3215.3577422533513
1994	2971.027394916501
1995	3026.4244318942656
1996	2923.7351686726583
1997	2977.2671194233926
1998	2955.9314296606804
1999	2966.6379882202664
2000	3281.2818164796613
2001	3337.226364126919
2002	3398.3166032027216
2003	3445.308964295248
2004	3455.4603215135025
2005	3516.8470488818575
2006	3579.602391825805
2007	3624.2571179534557
2008	3701.325838695561
2009	3878.5156247340315
2010	3987.1103269944906
2011	4093.6099023129245
2012	4060.079964538621
2013	4316.117492999406
2014	4319.739824056826
2015	4205.998938539406
2016	4219.297223324909
2017	4337.678141899559
2018	4538.869876707692
2019	4545.448549766944
2020	4755.275371010884
2021	4872.442338781412
2022	4923.097954867462