Year	current US$
1995	6614000000
1996	8444000000
1997	8679000000
1998	7946000000
1999	6100000000
2000	5677000000
2001	4646000000
2002	4314000000
2003	4069000000
2004	5855000000
2005	6304000000
2006	7270000000
2007	10641000000
2008	11826000000
2009	9056000000
2010	9414000000
2011	10554000000
2012	10801000000
2013	11154000000
2014	11614000000
2015	10283000000
2016	10847000000
2017	12614000000
2018	13862000000
2019	13704000000
2020	7771000000