Year	constant 2015 US$
1975	811730683.6966977
1976	917135506.0052321
1977	1008806807.675378
1978	1108665382.5288231
1979	1230946611.4462726
1980	1298557804.3388155
1981	1328586706.0024436
1982	1329458253.884334
1983	1318418598.1779475
1984	1447302484.9105995
1985	1670181775.8303225
1986	1839632378.3592463
1987	2047114274.466821
1988	2307866416.31156
1989	2711420827.8840823
1990	3139079430.8893423
1991	3364466918.193458
1992	3480302391.1788645
1993	3575602576.3029423
1994	3702263331.6631856
1995	4142509121.2798624
1996	4302317837.581264
1997	4826219489.544873
1998	5004252507.825854
1999	5041468234.059531
2000	5011418734.782322
2001	4844050849.660469
2002	5088544534.070248
2003	5154160677.395786
2004	5392590360.706053
2005	5615530443.142096
2006	6168161485.894552
2007	6704671892.768597
2008	7403753954.562162
2009	7906609431.321756
2010	8179240576.944064
2011	8696677268.47347
2012	9377075487.077028
2013	10057397439.609648
2014	10313460772.779865
2015	10504888610.831167
2016	10842663231.271126
2017	10785452419.289824
2018	11227017335.469198
2019	11894170425.533167
2020	12253483842.79584
2021	12634368898.958021
2022	12993544417.631182
2023	13636834407.028048