Quarterly Percent
1998-03-31 429
1998-06-30 -11
1998-09-30 -62.5
1998-12-31 -92
1999-03-31 367.2
1999-06-30 738.7
1999-09-30 16.2
1999-12-31 221.9
2000-03-31 -14.4
2000-06-30 170.9
2000-09-30 -8.4
2000-12-31 3.6
2001-03-31 133.6
2001-06-30 32.5
2001-09-30 -9.5
2001-12-31 -24.6
2002-03-31 93.7
2002-06-30 -19.9
2002-09-30 -33.2
2002-12-31 -15.3
2003-03-31 120.3
2003-06-30 -5.9
2003-09-30 86.1
2003-12-31 60.2
2004-03-31 487.4
2004-06-30 21
2004-09-30 100.5
2004-12-31 -74.3
2005-03-31 95
2005-06-30 152.5
2005-09-30 -22.1
2005-12-31 224.6
2006-03-31 38.8
2006-06-30 35.6
2006-09-30 32.3
2006-12-31 39.2
2007-03-31 376
2007-06-30 110.9
2007-09-30 131.6
2007-12-31 -22.4
2008-03-31 89.8
2008-06-30 -77.3
2008-09-30 226.2
2008-12-31 -96.1
2009-03-31 137.9
2009-06-30 -13.1
2009-09-30 8.8
2009-12-31 61.4
2010-03-31 11.4
2010-06-30 47.2
2010-09-30 -18.1
2010-12-31 21.3
2011-03-31 -41.6
2011-06-30 154.9
2011-09-30 -2.1
2011-12-31 -33.8
2012-03-31 67.5
2012-06-30 45.3
2012-09-30 -8.8
2012-12-31 33.3
2013-03-31 113.6
2013-06-30 -22.9
2013-09-30 41.5
2013-12-31 -1
2014-03-31 18.9
2014-06-30 57.1
2014-09-30 -1.1
2014-12-31 -6.6
2015-03-31 43.7
2015-06-30 57.9
2015-09-30 1.8
2015-12-31 -9.8
2016-03-31 88.7
2016-06-30 39.2
2016-09-30 -23.4
2016-12-31 -4.9
2017-03-31 30
2017-06-30 16.3
2017-09-30 -10.8
2017-12-31 34.6
2018-03-31 -3.3
2018-06-30 -33.4
2018-09-30 12.6
2018-12-31 114.7
2019-03-31 -28.6
2019-06-30 -6.7
2019-09-30 33.8
2019-12-31 -5
2020-03-31 63.2
2020-06-30 -31.4
2020-09-30 29.2
2020-12-31 10.9
2021-03-31 -13.6
2021-06-30 -17.6
2021-09-30 33.8
2021-12-31 3
2022-03-31 1.6
2022-06-30 0.5
2022-09-30 22.7
2022-12-31 -36.5
2023-03-31 26.4
2023-06-30 22.3
2023-09-30 28.6
2023-12-31 29.2