Year	Dollars
1998-01-01	13916696600.0000110
1999-01-01	13505680183.2190000
2000-01-01	8428947518.7085800
2001-01-01	5113938586.6690502
2002-01-01	10322608588.2999990
2003-01-01	14340766426.1352010
2004-01-01	20462414162.1136020
2005-01-01	14237076361.1170010
2006-01-01	11738143778.8794990
2007-01-01	5408409848.7502003
2008-01-01	14234725033.3363990
2009-01-01	8579220507.6864004
2010-01-01	7971803630.6728001
2011-01-01	14793325312.6616990