Quarterly Percent
1986-06-30 31.8
1986-09-30 39.1
1986-12-31 58.3
1987-03-31 53.6
1987-06-30 51.7
1987-09-30 40.6
1987-12-31 28.9
1988-03-31 37.2
1988-06-30 25
1988-09-30 35.6
1988-12-31 26.5
1989-03-31 16.9
1989-06-30 34.5
1989-09-30 42.6
1989-12-31 195.2
1990-03-31 166.1
1990-06-30 158.6
1990-09-30 124.3
1990-12-31 11.2
1991-03-31 13.3
1991-06-30 9.1
1991-09-30 8.4
1991-12-31 0.5
1992-03-31 -6
1992-06-30 -5.7
1992-09-30 -8.4
1992-12-31 -6.8
1993-03-31 17.2
1993-06-30 13.2
1993-09-30 20.1
1993-12-31 19.1
1994-03-31 3.1
1994-06-30 7
1994-09-30 4.3
1994-12-31 7.8
1995-03-31 5.7
1995-06-30 8.1
1995-09-30 8.1
1995-12-31 5.5
1996-03-31 6.1
1996-06-30 -3.4
1996-09-30 -1
1996-12-31 5
1997-03-31 15
1997-06-30 29.5
1997-09-30 35.9
1997-12-31 36.7
1998-03-31 42.2
1998-06-30 35.9
1998-09-30 29.8
1998-12-31 23.7
1999-03-31 15.1
1999-06-30 -8.4
1999-09-30 -6.4
1999-12-31 -3.8
2000-03-31 2.7
2000-06-30 11
2000-09-30 14.7
2000-12-31 4.2
2001-03-31 1.9
2001-06-30 19.5
2001-09-30 4.9
2001-12-31 -9.9
2002-03-31 -13.1
2002-06-30 -17.6
2002-09-30 -14.1
2002-12-31 9.6
2003-03-31 4.1
2003-06-30 -1.5
2003-09-30 6.6
2003-12-31 -1.5
2004-03-31 3.8
2004-06-30 5.7
2004-09-30 6.2
2004-12-31 14.2
2005-03-31 7.6
2005-06-30 12.7
2005-09-30 1.8
2005-12-31 2
2006-03-31 -2.3
2006-06-30 11.3
2006-09-30 18.3
2006-12-31 17.4
2007-03-31 25.6
2007-06-30 19.6
2007-09-30 17.1
2007-12-31 24.3
2008-03-31 13.9
2008-06-30 3.7
2008-09-30 -1.9
2008-12-31 -6.3
2009-03-31 -14.2
2009-06-30 -0.2
2009-09-30 -15.4
2009-12-31 -22.4
2010-03-31 -34.1
2010-06-30 -26.1
2010-09-30 -19.8
2010-12-31 -15.3
2011-03-31 22.2
2011-06-30 -0.1
2011-09-30 24.1
2011-12-31 -2.5
2012-03-31 14.6
2012-06-30 16.3
2012-09-30 3.8
2012-12-31 46
2013-03-31 36.4
2013-06-30 13.2
2013-09-30 23.8
2013-12-31 -1.1
2014-03-31 -17.7
2014-06-30 -6.3
2014-09-30 -8.1
2014-12-31 -5.2
2015-03-31 7.9
2015-06-30 8.4
2015-09-30 6.4
2015-12-31 9.3
2016-03-31 -3.5
2016-06-30 -4.6
2016-09-30 0.2
2016-12-31 -0.8
2017-03-31 2.1
2017-06-30 4.7
2017-09-30 -13.3
2017-12-31 -6.1
2018-03-31 -3.8
2018-06-30 10.7
2018-09-30 23
2018-12-31 10.7
2019-03-31 10.2
2019-06-30 1.9
2019-09-30 -0.1
2019-12-31 -1
2020-03-31 5.4
2020-06-30 -2.7
2020-09-30 -8.9
2020-12-31 13.2
2021-03-31 -1.4
2021-06-30 4.7
2021-09-30 14
2021-12-31 -1.7
2022-03-31 9
2022-06-30 6.9
2022-09-30 20.6
2022-12-31 10.2
2023-03-31 0.2
2023-06-30 -3.5