How to fetch and display the labels from this js file

I want to fetch the labels such as ASHOKLEY and display the percentage. Not sure how to do it.

modelDataAvailable({"groups":[{"label":"ASHOKLEY 2.8%","weight":2.8,"id":"1"},{"label":"BHARATFORG 3.5%","weight":3.5,"id":"2"},{"label":"BAJAJ-AUTO 9.61%","weight":9.61,"id":"3"},{"label":"BALKRISIND 2.16%","weight":2.16,"id":"4"},{"label":"BOSCHLTD 2.23%","weight":2.23,"id":"5"},{"label":"EICHERMOT 5.82%","weight":5.82,"id":"6"},{"label":"HEROMOTOCO 6.65%","weight":6.65,"id":"7"},{"label":"M&M 16.38%","weight":16.38,"id":"8"},{"label":"MARUTI 14.9%","weight":14.9,"id":"9"},{"label":"MOTHERSON 2.98%","weight":2.98,"id":"10"},{"label":"MRF 3.22%","weight":3.22,"id":"11"},{"label":"SONACOMS 2.81%","weight":2.81,"id":"12"},{"label":"TATAMOTORS 17.25%","weight":17.25,"id":"13"},{"label":"TIINDIA 4.51%","weight":4.51,"id":"14"},{"label":"TVSMOTOR 5.16%","weight":5.16,"id":"15"},]},{ label:  "NIFTY AUTO ",file: "SectorialIndexDataNIFTY AUTO.jsonp "});