Year	current US$
2002	12988880000
2003	16662910000
2004	28597850000
2005	32575670000
2006	41934490000
2007	46195630000
2008	18465410000
2009	30036630000
2010	27708410000
2011	18772970000
2012	20760180000
2013	19797410000
2014	14513280000
2015	17686950000
2016	22553356583.7561
2017	31553860000
2018	28934570000
2019	32886530000
2020	27970830000
2021	31571340000
2022	23867010000