Year	Millions of 2000 Dollars
1992-01-01	184.87099999999998
1993-01-01	58.43770000000000
1994-01-01	88.46130000000000
1995-01-01	142.96900000000000
1996-01-01	172.70300000000000
1997-01-01	192.84400000000002
1998-01-01	246.01700000000000
1999-01-01	272.14799999999997
2000-01-01	345.95500000000000
2001-01-01	349.17600000000000
2002-01-01	438.92300000000000
2003-01-01	491.28700000000000
2004-01-01	677.87000000000000
2005-01-01	904.33500000000000
2006-01-01	1451.36000000000000
2007-01-01	2371.43000000000000
2008-01-01	2407.25000000000000
2009-01-01	1408.56000000000000
2010-01-01	1632.69000000000000
2011-01-01	1918.81000000000000
2012-01-01	2238.17000000000000
2013-01-01	2645.92000000000000
2014-01-01	2558.07000000000000
2015-01-01	2841.25000000000000
2016-01-01	3280.95000000000000