Year	current US$
1995	10000000
1996	10000000
1997	10000000
2002	11000000
2003	14000000
2004	15000000
2005	13000000
2006	11000000
2007	13000000
2008	32000000
2009	28000000
2010	34000000
2011	39000000
2012	43000000
2013	46000000
2014	41000000
2015	34000000
2016	28000000
2017	19000000
2018	21000000
2019	32000000
2020	22000000