Quarter Percent per Annum 2009-01-01 -3.25 2009-04-01 -1.60 2009-07-01 1.67 2009-10-01 3.00 2010-01-01 1.66 2010-04-01 0.43 2010-07-01 -1.34 2010-10-01 -3.17 2011-01-01 -5.65 2011-04-01 -8.06 2011-07-01 -8.37 2011-10-01 -10.98 2012-01-01 -11.20 2012-04-01 -10.78 2012-07-01 -10.29 2012-10-01 -5.87 2013-01-01 -4.73 2013-04-01 -3.13 2013-07-01 -1.35 2013-10-01 0.68 2014-01-01 4.15 2014-04-01 6.26 2014-07-01 5.48 2014-10-01 2.32 2015-01-01 0.91 2015-04-01 2.20 2015-07-01 2.65 2015-10-01 4.43 2016-01-01 6.36 2016-04-01 5.83 2016-07-01 6.91 2016-10-01 6.76 2017-01-01 6.42 2017-04-01 6.50 2017-07-01 9.18 2017-10-01 8.89 2018-01-01 11.38 2018-04-01 10.15