Quarter	Percent per Annum
2011-01-01	-2.69
2011-04-01	-3.63
2011-07-01	-4.42
2011-10-01	-5.15
2012-01-01	-6.15
2012-04-01	-7.21
2012-07-01	-7.37
2012-10-01	-7.20
2013-01-01	-7.09
2013-04-01	-5.91
2013-07-01	-5.22
2013-10-01	-3.68
2014-01-01	-1.43
2014-04-01	1.35
2014-07-01	1.38
2014-10-01	1.99
2015-01-01	3.25
2015-04-01	1.95
2015-07-01	2.82
2015-10-01	1.82
2016-01-01	1.97
2016-04-01	1.46
2016-07-01	2.92
2016-10-01	3.70
2017-01-01	1.27
2017-04-01	2.69
2017-07-01	1.79
2017-10-01	1.53
2018-01-01	4.26
2018-04-01	4.19