Year	current US$
2002	5000000
2003	9000000
2004	8000000
2005	-6000000
2006	-3000000
2007	-8000000
2008	-17000000
2009	-6000000
2010	-5000000
2011	-3000000
2013	6000000
2014	32000000
2015	23000000
2016	46000000
2017	38000000
2018	-11000000
2019	-4000000
2020	19000000
2021	3000000
2022	-29000000