Year	current US$
1991	83000000
1992	417000000
1993	1975100000
1994	5206700000
1995	2769110000
1996	5543800000
1997	7424680000
1998	8872930000
1999	10745410000
2000	20459530000
2001	10176860000
2002	3242530000
2003	7764010000
2004	17805410000
2005	26241350000
2006	53233690000
2007	90168840000
2008	51688940000
2009	56628310000
2010	69439410000
2011	73064170000
2012	60228450000
2013	72612730000
2014	57794630000
2015	52627770000
2016	45639568724.1222
2017	68001894912.4385
2018	54748160000
2019	50394380000
2020	83438270000
2021	78487800000
2022	65624540000