Month Percent 2007-05-31 -28.1 2007-06-30 -18.8 2007-07-31 11.3 2007-08-31 -5.3 2007-09-30 32.2 2007-10-31 21.3 2007-11-30 31.4 2007-12-31 18.1 2008-01-31 26.7 2008-02-29 29 2008-03-31 45.2 2008-04-30 46.8 2008-05-31 56.8 2008-06-30 57.9 2008-07-31 25.4 2008-08-31 56.5 2008-09-30 47.2 2008-10-31 113 2008-11-30 96.2 2008-12-31 80.6 2009-01-31 70 2009-02-28 73.1 2009-03-31 58.7 2009-04-30 167.6 2009-05-31 258.7 2009-06-30 342.8 2009-07-31 444.3 2009-08-31 398.1 2009-09-30 278.4 2009-10-31 196.9 2009-11-30 226.2 2009-12-31 238.4 2010-01-31 280.4 2010-02-28 296.3 2010-03-31 273.6 2010-04-30 113 2010-05-31 53 2010-06-30 19.4 2010-07-31 -1.3 2010-08-31 5.2 2010-09-30 5.1 2010-10-31 -0.3 2010-11-30 -3.6 2010-12-31 -4 2011-01-31 -9.5 2011-02-28 -11.4 2011-03-31 -11.1 2011-04-30 -12.7 2011-05-31 -12.9 2011-06-30 -13.9 2011-07-31 -15.2 2011-08-31 -15.1 2011-09-30 -13.6 2011-10-31 -8 2011-11-30 5.6 2011-12-31 17.1 2012-01-31 24.6 2012-02-29 36.7 2012-03-31 49.4 2012-04-30 64.6 2012-05-31 75.2 2012-06-30 77 2012-07-31 85 2012-08-31 97.2 2012-09-30 110.3 2012-10-31 108.6 2012-11-30 85.6 2012-12-31 68.2 2013-01-31 58.1 2013-02-28 46.5 2013-03-31 37.8 2013-04-30 30.7 2013-05-31 25.3 2013-06-30 27 2013-07-31 24.7 2013-08-31 17.8 2013-09-30 12.5 2013-10-31 9 2013-11-30 7.5 2013-12-31 8.4 2014-01-31 9.4 2014-02-28 9.8 2014-03-31 7.8 2014-04-30 5.7 2014-05-31 5.6 2014-06-30 5 2014-07-31 3.4 2014-08-31 2.4 2014-09-30 -0.9 2014-10-31 0.1 2014-11-30 0.7 2014-12-31 0.6 2015-01-31 1.2 2015-02-28 0.7 2015-03-31 1.6 2015-04-30 2.2 2015-05-31 3.4 2015-06-30 3.8 2015-07-31 4.2 2015-08-31 4.6 2015-09-30 5.5 2015-10-31 5.1 2015-11-30 3.6 2015-12-31 1.8 2016-01-31 3.3 2016-02-29 3 2016-03-31 2.9 2016-04-30 3.4 2016-05-31 0.8 2016-06-30 0.2 2016-07-31 0.8 2016-08-31 2.6 2016-09-30 4 2016-10-31 6.8 2016-11-30 11.8 2016-12-31 20.2 2017-01-31 21.4 2017-02-28 26.5 2017-03-31 32.1 2017-04-30 35.4 2017-05-31 37.6 2017-06-30 39.2 2017-07-31 40.1 2017-08-31 37.5 2017-09-30 37.5 2017-10-31 35.5 2017-11-30 29.8 2017-12-31 25.6 2018-01-31 23.3 2018-02-28 20.5 2018-03-31 15 2018-04-30 14.1 2018-05-31 12.8 2018-06-30 11.1 2018-07-31 9 2018-08-31 9.4 2018-09-30 10.7 2018-10-31 7.7 2018-11-30 7 2018-12-31 5.3 2019-01-31 4 2019-02-28 1.9 2019-03-31 -0.5 2019-04-30 -0.6 2019-05-31 -0.2 2019-06-30 0.2 2019-07-31 -0.2 2019-08-31 -1 2019-09-30 -3.6 2019-10-31 -1.5 2019-11-30 -0.9 2019-12-31 -1.4 2020-01-31 -2.7 2020-02-29 -3 2020-03-31 -1.3 2020-04-30 13 2020-05-31 29.1 2020-06-30 39 2020-07-31 45.1 2020-08-31 50 2020-09-30 54 2020-10-31 54.3 2020-11-30 58.1 2020-12-31 60.8 2021-01-31 62.6 2021-02-28 66.4 2021-03-31 70.3 2021-04-30 46.4 2021-05-31 30.2 2021-06-30 21.7 2021-07-31 19.6 2021-08-31 17.1 2021-09-30 17.6 2021-10-31 20.4 2021-11-30 25.9 2021-12-31 26.1 2022-01-31 26.6 2022-02-28 23.1 2022-03-31 19.2 2022-04-30 17.7 2022-05-31 15.1 2022-06-30 14.9 2022-07-31 12.1 2022-08-31 11.6 2022-09-30 10.5 2022-10-31 5.9 2022-11-30 -1.4 2022-12-31 -3.6 2023-01-31 -5.7 2023-02-28 -6.3 2023-03-31 -4.7 2023-04-30 -6 2023-05-31 -7.3 2023-06-30 -7.9 2023-07-31 -9.2 2023-08-31 -11.7 2023-09-30 -13 2023-10-31 -14.4 2023-11-30 -15.3 2023-12-31 -14