Quarterly Percent
1987-12-31 11.4
1988-03-31 8.2
1988-06-30 21.6
1988-09-30 4.4
1988-12-31 2.3
1989-03-31 10.9
1989-06-30 21.4
1989-09-30 17.5
1989-12-31 27.7
1990-03-31 16.5
1990-06-30 6.1
1990-09-30 6.4
1990-12-31 -2.4
1991-03-31 -3.9
1991-06-30 -22.2
1991-09-30 -13
1991-12-31 -6.4
1992-03-31 -3.8
1992-06-30 1.8
1992-09-30 16.4
1992-12-31 20.3
1993-03-31 44.9
1993-06-30 33.8
1993-09-30 4.9
1993-12-31 -6.6
1994-03-31 -28.3
1994-06-30 -14.9
1994-09-30 -3.8
1994-12-31 3
1995-03-31 172
1995-06-30 83
1995-09-30 13
1995-12-31 6.1
1996-03-31 -51.9
1996-06-30 -22.7
1996-09-30 20.7
1996-12-31 16.4
1997-03-31 21.8
1997-06-30 6.4
1997-09-30 43
1997-12-31 41.3
1998-03-31 27.3
1998-06-30 45.2
1998-09-30 19.6
1998-12-31 18.9
1999-03-31 9.1
1999-06-30 5.4
1999-09-30 -15.4
1999-12-31 -13.3
2000-03-31 -12.7
2000-06-30 -20.3
2000-09-30 -9.7
2000-12-31 -6
2001-03-31 -3.1
2001-06-30 -3.1
2001-09-30 0.7
2001-12-31 -5.3
2002-03-31 -3.2
2002-06-30 -3.1
2002-09-30 -5.1
2002-12-31 -5.3
2003-03-31 -10.8
2003-06-30 -8.3
2003-09-30 -14.7
2003-12-31 -15.5
2004-03-31 -15.7
2004-06-30 -16.8
2004-09-30 -18.7
2004-12-31 -19
2005-03-31 -20
2005-06-30 -13
2005-09-30 -4
2005-12-31 11.3
2006-03-31 37.2
2006-06-30 25.7
2006-09-30 15.7
2006-12-31 1
2007-03-31 -18.2
2007-06-30 -13.8
2007-09-30 -4.1
2007-12-31 -3.4
2008-03-31 8.7
2008-06-30 7.9
2008-09-30 1.5
2008-12-31 11
2009-03-31 5.8
2009-06-30 -1.4
2009-09-30 -6.7
2009-12-31 -16.4
2010-03-31 -21.5
2010-06-30 -14.2
2010-09-30 -7.4
2010-12-31 1.2
2011-03-31 -9.7
2011-06-30 -6.6
2011-09-30 -15.2
2011-12-31 -12.6
2012-03-31 2.3
2012-06-30 -0.1
2012-09-30 14.6
2012-12-31 4.6
2013-03-31 -5.4
2013-06-30 -11.9
2013-09-30 -16.4
2013-12-31 -5
2014-03-31 1.8
2014-06-30 24.4
2014-09-30 21
2014-12-31 15.4
2015-03-31 18.1
2015-06-30 -1.2
2015-09-30 9.5
2015-12-31 11.5
2016-03-31 23.3
2016-06-30 18.5
2016-09-30 18.9
2016-12-31 17.9
2017-03-31 -4.7
2017-06-30 -4.9
2017-09-30 -11.4
2017-12-31 -9.3
2018-03-31 -2.7
2018-06-30 81.5
2018-09-30 83.1
2018-12-31 82.8
2019-03-31 80.2
2019-06-30 5.6
2019-09-30 -2.2
2019-12-31 -29.1
2020-03-31 -11.2
2020-06-30 -38.7
2020-09-30 -41.4
2020-12-31 -2.9
2021-03-31 -36.7
2021-06-30 -11.1
2021-09-30 -6.4
2021-12-31 -17.3
2022-03-31 29.8
2022-06-30 40.1
2022-09-30 53.9
2022-12-31 29.4
2023-03-31 -3.4
2023-06-30 -4.3
2023-09-30 -2.1
2023-12-31 -9.9