Quarterly Percent
1998-12-31 -38.7
1999-03-31 -40.6
1999-06-30 4.1
1999-09-30 38.1
1999-12-31 248
2000-03-31 127.7
2000-06-30 71.6
2000-09-30 61.7
2000-12-31 21.8
2001-03-31 56.5
2001-06-30 30.9
2001-09-30 30.5
2001-12-31 20.6
2002-03-31 15.1
2002-06-30 1.5
2002-09-30 -6
2002-12-31 -3.2
2003-03-31 0
2003-06-30 4.1
2003-09-30 34.4
2003-12-31 57.7
2004-03-31 101.5
2004-06-30 114.5
2004-09-30 118.6
2004-12-31 38.3
2005-03-31 5
2005-06-30 26.2
2005-09-30 -0.4
2005-12-31 87.8
2006-03-31 72.5
2006-06-30 47.7
2006-09-30 68.6
2006-12-31 36.4
2007-03-31 85.7
2007-06-30 107.3
2007-09-30 138.5
2007-12-31 106.1
2008-03-31 63.8
2008-06-30 -6.2
2008-09-30 2.2
2008-12-31 -51.6
2009-03-31 -48.8
2009-06-30 -28.4
2009-09-30 -45.5
2009-12-31 37.6
2010-03-31 13.9
2010-06-30 30.3
2010-09-30 21.4
2010-12-31 13
2011-03-31 -3.9
2011-06-30 10.2
2011-09-30 15.3
2011-12-31 -0.9
2012-03-31 29
2012-06-30 12.1
2012-09-30 10.1
2012-12-31 31.1
2013-03-31 39.4
2013-06-30 18.9
2013-09-30 32.7
2013-12-31 23.2
2014-03-31 6.4
2014-06-30 27.2
2014-09-30 16.3
2014-12-31 14.6
2015-03-31 20.2
2015-06-30 20.3
2015-09-30 21.2
2015-12-31 20.1
2016-03-31 28.6
2016-06-30 24.6
2016-09-30 16
2016-12-31 17.6
2017-03-31 7.2
2017-06-30 2.5
2017-09-30 6.4
2017-12-31 16.1
2018-03-31 7.8
2018-06-30 -6.2
2018-09-30 -0.6
2018-12-31 11.7
2019-03-31 3.6
2019-06-30 12.6
2019-09-30 17.6
2019-12-31 -4.1
2020-03-31 18
2020-06-30 9.2
2020-09-30 8.3
2020-12-31 12.5
2021-03-31 -4
2021-06-30 0.5
2021-09-30 1.4
2021-12-31 -0.5
2022-03-31 3.6
2022-06-30 8.9
2022-09-30 6.6
2022-12-31 -5.6
2023-03-31 -0.3
2023-06-30 4.8
2023-09-30 6
2023-12-31 26.6