Year	current US$
2002	243000000
2003	248000000
2004	217000000
2005	239000000
2006	268000000
2007	288000000
2008	307000000
2009	295000000
2010	301000000
2011	216000000
2012	221000000
2013	222000000
2014	264000000
2015	244000000
2016	249000000
2017	255000000
2018	254000000
2019	264000000
2020	191000000