Year	current US$
1976	440468306.2624177
1977	543791813.5494819
1978	677237345.4048376
1979	815458454.4208819
1980	853949849.9015914
1981	814297073.7450795
1982	763482347.7473086
1983	758059831.5422596
1984	713098734.6464756
1985	719961938.7633452
1986	891109533.8472363
1987	1140685857.3667457
1988	1307140903.687194
1989	1395431156.4235702
1990	1683120095.7354028
1991	1768525689.6299255
1992	1962462327.818275
1993	2006411963.944974
1994	2218498809.07222
1995	2532041938.496808
1996	2726597577.3324223
1997	2571512767.7117314
1998	2556236814.1910124
1999	2699657044.9516644
2000	2792852576.7938643
2001	2728905226.490836
2002	2923874210.666845
2003	3510018861.010036
2004	4159603050.593601
2005	4412797498.582276
2006	4691739802.366382
2007	5413676384.514155
2008	7218963535.377385
2009	6686743972.114969
2010	7321760372.136537
2011	8452846883.660007
2012	8663868305.767473
2013	9006311707.775272
2014	9535551306.777822
2015	8713769407.845005
2016	8965900878.127363
2017	9875350797.740046
2018	10677395209.58084
2019	10592296219.17669
2020	8286389183.116255
2021	8395324777.502707
2022	9073422844.08347
2023	9731301178.722574