Quarter Percent 2012-06-30 -0.5 2012-09-30 6.9 2012-12-31 16.5 2013-03-31 20.1 2013-06-30 10.2 2013-09-30 2.4 2013-12-31 -2.6 2014-03-31 -13.2 2014-06-30 -8.8 2014-09-30 -19.7 2014-12-31 -9.2 2015-03-31 1.5 2015-06-30 -9.7 2015-09-30 -7.1 2015-12-31 -6.9 2016-03-31 -12.3 2016-06-30 1.4 2016-09-30 4.9 2016-12-31 5.6 2017-03-31 31.3 2017-06-30 11.1 2017-09-30 30.6 2017-12-31 15.9 2018-03-31 -10 2018-06-30 5.3 2018-09-30 -1 2018-12-31 6.6 2019-03-31 2 2019-06-30 -7.2 2019-09-30 -4.6 2019-12-31 -0.9 2020-03-31 22.5 2020-06-30 29.8 2020-09-30 23.1 2020-12-31 4.8 2021-03-31 -2 2021-06-30 -2.8 2021-09-30 -0.4 2021-12-31 17.4 2022-03-31 10.2 2022-06-30 10 2022-09-30 -4.5 2022-12-31 -0.1 2023-03-31 0.6 2023-06-30 -8.1 2023-09-30 -2.3 2023-12-31 -14.1