Year	current US$
1991	28138400000
1992	32256800000
1993	44833400000
1994	68050350000.00001
1995	72927720000
1996	65971300000
1997	72046180000
1998	51866170000
1999	68227520000.00001
2000	60400770000
2001	56309720000
2002	49827000000
2003	86525910000
2004	116924270000
2005	136493350000
2006	174418780000
2007	212910230000
2008	131807959999.99998
2009	230732390000
2010	341798880000
2011	270289080000.00003
2012	313325270000
2013	265150080000.00003
2014	233245470000
2015	190352000000
2016	212479793765.00302
2017	294675740000
2018	252922690000
2019	407583300000
2020	369098840000
2021	259526740000
2022	285231910000