Year	current US$
1998	119000000
1999	10000000
2000	11000000
2003	2000000
2004	27000000
2006	94500000
2007	457700000
2008	67800000
2009	47700000
2010	15700000
2011	417000000
2015	417000000
2017	65000000
2019	14400000