Year	current US$
1996	80648630000
1997	31360600000
1998	35297040000
1999	42177840000
2000	25980660000
2001	21245370000
2002	18507430000
2003	23175720000
2004	28601910000
2005	39798720000
2006	67851740000.00001
2007	102852740000
2008	52030600000
2009	86349430000
2010	157320500000
2011	165066420000
2012	229316640000
2013	217320260000
2014	261840670000
2015	238819940000
2016	239738046230.45
2017	290401420000
2018	258223590000
2019	275366710000
2020	272790290000
2021	285423260000
2022	238581110000