Year	current US$
1995	51000000
1996	62000000
1997	58000000
1998	95000000
1999	82000000
2000	114000000
2001	104000000
2002	107000000
2003	74000000
2004	119000000
2005	139000000
2006	158000000
2007	189000000
2008	276000000
2009	268000000
2010	382000000
2011	406000000
2012	451000000
2013	596000000
2014	642000000
2015	724000000
2016	716000000
2017	648000000
2018	811000000
2019	935000000
2020	213000000