Year	constant 2015 US$
1975	1556936507.8716593
1976	1814400572.031021
1977	2145534428.1989663
1978	2383252177.8878694
1979	2524515640.348531
1980	2667677680.5490637
1981	2713246551.0174336
1982	3025013760.4331164
1983	3244883413.2520156
1984	3391083754.5125566
1985	3591586760.5791936
1986	3653864124.794952
1987	3852848340.697575
1988	4257651868.789869
1989	4551570741.053792
1990	4959032782.516949
1991	5450796613.765994
1992	5623958193.010354
1993	5363076893.153051
1994	5729526395.8957205
1995	7394808676.858052
1996	7669274788.945666
1997	7860084105.874432
1998	8426761607.8527355
1999	8778737561.743765
2000	9483004407.423502
2001	10008708262.339647
2002	10317325877.533207
2003	10767130831.978672
2004	11541631094.58126
2005	11992898584.371706
2006	12462531031.929367
2007	13677385846.306755
2008	14800825970.837128
2009	13834951089.108139
2010	14506617330.897484
2011	14377361379.913073
2012	13978710043.567719
2013	12999616833.097267
2014	12994326329.5643
2015	13400895295.286932
2016	14089440169.225664
2017	14770307582.255854
2018	15526777083.78121
2019	16125329019.893026
2020	15088135431.651342
2021	15927981909.41207
2022	17292531917.75926
2023	17943174742.167942