Year	constant 2015 US$
1992	10000
1994	145060000
1995	64120000
1996	150640000
1997	56470000
1998	58930000
1999	66930000
2000	95680000
2001	166390000
2002	181220000
2003	149590000
2004	137350000
2005	131840000
2006	201710000
2007	151680000
2008	203580000
2009	145380000
2010	116370000
2011	230000