Year	constant 2015 US$
1978	133648583650.33388
1979	144134905589.49612
1980	152872090891.3299
1981	167526497215.78912
1982	188723453081.29266
1983	216340293331.90576
1984	258274538414.4261
1985	305057586775.496
1986	342633637107.00323
1987	392938018108.5021
1988	444694256351.2749
1989	470655902235.61224
1990	483216461606.6175
1991	527692690561.4178
1992	594183705760.2504
1993	666495597417.4565
1994	742265350251.9221
1995	817106418117.3519
1996	892407522169.6029
1997	985496793101.5984
1998	1068299864195.8353
1999	1167108462465.4436
2000	1281209094722.4897
2001	1412653311217.6152
2002	1560778991941.966
2003	1709674318132.933
2004	1882693982031.8481
2005	2115356335390.2292
2006	2414345227313.255
2007	2802366599663.0156
2008	3095938058142.5024
2009	3392732817304.5405
2010	3720775526045.586
2011	4073807524102.676
2012	4400286523579.185
2013	4765473715150.187
2014	5163000808731.217
2015	5616142397746.507
2016	6070829777386.489
2017	6572873638815.822
2018	7097619664677.044
2019	7607306845904.602
2020	7755430405198.25
2021	8413546253527.846
2022	8606627940639.473
2023	9167758244078.291