this is the data :"{\"cols\":[{\"label\":\"Year\",\"type\":\"number\"},{\"label\":\"HPE\",\"type\":\"number\"},{\"label\":\"HPI\",\"type\":\"number\"},{\"label\":\"HPE/HPI\",\"type\":\"number\"}],\"rows\":[{\"c\":[{\"v\":2010},{\"v\":50},{\"v\":42},{\"v\":3}]},{\"c\":[{\"v\":2011},{\"v\":45},{\"v\":22},{\"v\":2}]},{\"c\":[{\"v\":2012},{\"v\":80},{\"v\":33},{\"v\":7}]},{\"c\":[{\"v\":2013},{\"v\":55},{\"v\":44},{\"v\":8}]},{\"c\":[{\"v\":2014},{\"v\":70},{\"v\":55},{\"v\":4}]},{\"c\":[{\"v\":2015},{\"v\":66},{\"v\":8},{\"v\":11}]},{\"c\":[{\"v\":2016},{\"v\":22},{\"v\":11},{\"v\":5}]}]}"