Year	constant 2015 US$
1984	579.5311688529371
1985	592.3708709054617
1986	604.0687547057561
1987	578.7177330110214
1988	551.0438435885716
1989	611.4488663735001
1990	634.1593867542355
1991	643.1047380785006
1992	660.4223945076923
1993	680.9298533057869
1994	717.6987721922532
1995	749.5353520838703
1996	782.9568830677838
1997	819.4401356192797
1998	836.3022626216945
1999	881.754321166909
2000	917.288670872879
2001	954.4303277191716
2002	995.3416074772814
2003	1040.3332418863645
2004	1091.3007774655464
2005	1151.9301670814432
2006	1231.5189507388952
2007	1304.2923075959227
2008	1384.689339176209
2009	1466.0889790179294
2010	1567.5775125940177
2011	1669.0662921434093
2012	1777.410082535703
2013	1893.3264877600361
2014	2009.8253856781264
2015	2125.458900599599
2016	2240.4161817333743
2017	2358.372490454744
2018	2467.9555799265427
2019	2564.019465152373
2020	2539.1243376935677
2021	2566.277233613148
2022	2599.2048876829044
2023	2659.718384864828