Year	current US$
1995	27000000
1996	26000000
1997	27000000
1998	32000000
1999	32000000
2000	34000000
2001	39000000
2002	44000000
2003	48000000
2004	55000000
2005	62000000
2006	71000000
2007	102000000
2008	136000000
2009	100000000
2010	92000000
2011	113000000
2012	111000000
2013	131000000
2014	149000000
2015	159000000
2016	180000000
2017	207000000
2018	259000000
2019	282000000
2020	147000000