Year	constant 2015 US$
1980	1291796511.932511
1981	1487436513.6784444
1982	1321321656.309283
1983	1147670141.7089992
1984	1161673797.1256883
1985	1197875154.733746
1986	1271644711.3740964
1987	1437330965.2953784
1988	1385073605.3072848
1989	1364188866.4748676
1990	1342097354.8045924
1991	1389539532.2580976
1992	1464401243.6437492
1993	1450025481.7936313
1994	1504294755.3744295
1995	1641660707.9925225
1996	1899669205.6895728
1997	1964825000.0152104
1998	2115144275.05918
1999	2144636008.7957058
2000	2032957711.3266437
2001	2323078615.2778254
2002	2465972268.555164
2003	2725047310.5360427
2004	2453929348.659107
2005	2476646017.6317315
2006	2880850123.445256
2007	3808854356.230544
2008	4519971598.869527
2009	5203276605.863929
2010	4670154139.258276
2011	4636114476.126232
2012	5544959539.692031
2013	5927202098.983931
2014	6986576181.754559
2015	7012858245.288106
2016	7288850843.424395
2017	6552574020.5572405
2018	6633985588.969619
2019	6369711843.230986
2020	5411499684.898341
2021	6503499532.4409485
2022	7998157259.163575
2023	9817091838.364655