Quarterly Percent
1998-12-31 -20.7
1999-03-31 -14.2
1999-06-30 -14.5
1999-09-30 -12.9
1999-12-31 13.1
2000-03-31 20.6
2000-06-30 28.4
2000-09-30 9.9
2000-12-31 23.6
2001-03-31 15
2001-06-30 -2.4
2001-09-30 7.2
2001-12-31 6.6
2002-03-31 -9.4
2002-06-30 15
2002-09-30 3.9
2002-12-31 -7.5
2003-03-31 -1.2
2003-06-30 -6.7
2003-09-30 12.1
2003-12-31 29.1
2004-03-31 38.7
2004-06-30 28.4
2004-09-30 8.5
2004-12-31 1.5
2005-03-31 -11.7
2005-06-30 -4.7
2005-09-30 -4.9
2005-12-31 -2.7
2006-03-31 22.1
2006-06-30 12.1
2006-09-30 11.3
2006-12-31 17.4
2007-03-31 12.6
2007-06-30 23.1
2007-09-30 25.7
2007-12-31 15.4
2008-03-31 -5.1
2008-06-30 -19.1
2008-09-30 -28.2
2008-12-31 -30
2009-03-31 -34.1
2009-06-30 -24.9
2009-09-30 -8.8
2009-12-31 2.1
2010-03-31 24.6
2010-06-30 10.1
2010-09-30 18.4
2010-12-31 5.6
2011-03-31 0.3
2011-06-30 4.8
2011-09-30 -0.4
2011-12-31 -14.1
2012-03-31 -4
2012-06-30 -0.5
2012-09-30 4.3
2012-12-31 11.8
2013-03-31 1.2
2013-06-30 11.1
2013-09-30 -3.6
2013-12-31 4.7
2014-03-31 -0.8
2014-06-30 1.1
2014-09-30 -1.7
2014-12-31 -5.3
2015-03-31 1.1
2015-06-30 -13.3
2015-09-30 -2.3
2015-12-31 -11.3
2016-03-31 -19.6
2016-06-30 -2.7
2016-09-30 -8.1
2016-12-31 3.1
2017-03-31 7.2
2017-06-30 -5.8
2017-09-30 -9.5
2017-12-31 -5.4
2018-03-31 -2.5
2018-06-30 -6
2018-09-30 -11.5
2018-12-31 -15.6
2019-03-31 -20.4
2019-06-30 -16.2
2019-09-30 0.4
2019-12-31 13.8
2020-03-31 34.5
2020-06-30 31
2020-09-30 18
2020-12-31 16.2
2021-03-31 -13.9
2021-06-30 -4
2021-09-30 9
2021-12-31 9.9
2022-03-31 17.4
2022-06-30 3.9
2022-09-30 -1.5
2022-12-31 -16.9
2023-03-31 -16.9
2023-06-30 -0.4
2023-09-30 3.6
2023-12-31 44.1