Year	current US$
1977	1285953415.586189
1978	1396608786.998916
1979	1589142859.413057
1980	2185857145.9797907
1981	2269285717.527551
1982	2514142860.7344923
1983	2509000003.584285
1984	2838000001.689279
1985	2854714285.714286
1986	2737714285.714281
1987	2487999999.999997
1988	2756999999.9999957
1989	2856363636.363636
1990	3326500000
1991	2998000000
1992	4646000000
1993	5164000000
1994	5382000000
1995	4511000000
1996	4709000000
1997	5812800000
1998	5886000000
1999	5958700000
2000	7161000000
2001	6356300000
2002	6013175000
2003	6037937500
2004	7470125000
2005	9507400000
2006	10288200000
2007	13087700000
2008	16335000000
2009	12765100000
2010	12990900000
2011	13129000000
2012	15557000000
2013	14807800000
2014	16840200000
2015	16723600000
2016	16388600000
2017	16081600000
2018	17829912500
2019	20414612500
2020	17126962500
2021	21190200000
2022	23593232500