Quarter	Percent
1998-06-30	10.2
1998-09-30	12.1
1998-12-31	-11
1999-03-31	9.1
1999-06-30	-21.8
1999-09-30	3.4
1999-12-31	-4.7
2000-03-31	33.8
2000-06-30	248.7
2000-09-30	39.9
2000-12-31	-17
2001-03-31	-12.8
2001-06-30	-30.7
2001-09-30	-0.9
2001-12-31	-11.1
2002-03-31	-9.7
2002-06-30	10.7
2002-09-30	-11.1
2002-12-31	-22.2
2003-03-31	27.8
2003-06-30	11.5
2003-09-30	16.2
2003-12-31	-4.1
2004-03-31	44
2004-06-30	-8.3
2004-09-30	9.2
2004-12-31	3.3
2005-03-31	7.2
2005-06-30	46
2005-09-30	7.5
2005-12-31	-13.1
2006-03-31	42.4
2006-06-30	35.4
2006-09-30	31.8
2006-12-31	-28.7
2007-03-31	61.2
2007-06-30	45
2007-09-30	3.6
2007-12-31	-37.3
2008-03-31	9.8
2008-06-30	2.8
2008-09-30	168.8
2008-12-31	-15.7
2009-03-31	-26.6
2009-06-30	28.6
2009-09-30	15
2009-12-31	-0.1
2010-03-31	-9.9
2010-06-30	11.6
2010-09-30	14
2010-12-31	8.5
2011-03-31	-25.2
2011-06-30	63.6
2011-09-30	8.4
2011-12-31	-27.5
2012-03-31	-13.5
2012-06-30	91.5
2012-09-30	-19.4
2012-12-31	13