What is the winning pct for jersey 15?
{'header': ['Quarterback', 'Jersey No.', 'Games Started', 'Wins', 'Losses', 'Ties', 'Winning Pct.'], 'page_title': 'List of Notre Dame Fighting Irish starting quarterbacks', 'section_title': 'Win loss records', 'caption': 'Win loss records', 'rows': [['Everett Golson', '5', '11', '10', '1', '0', '.909'], ['Rees, Tommy', '13 (2010) , 11 (2011-13)', '27', '21', '6', '0', '.770'], ['Crist, Dayne', '10', '10', '4', '6', '0', '.400'], ['Clausen, Jimmy', '7', '34', '16', '18', '0', '.471'], ['Sharpley, Evan', '13', '2', '0', '2', '0', '.000'], ['Jones, Demetrius', '3', '1', '0', '1', '0', '.000'], ['Quinn, Brady', '10', '46', '29', '17', '0', '.630'], ['Holiday, Carlyle', '7', '24', '15', '9', '0', '.625'], ['Dillingham, Pat', '9', '1', '1', '0', '0', '1.000'], ['LoVecchio, Matt', '10', '10', '7', '3', '0', '.700'], ['Godsey, Gary', '14', '2', '1', '1', '0', '.500'], ['Battle, Arnaz', '3', '2', '1', '1', '0', '.500'], ['Jackson, Jarious', '7', '23', '14', '9', '0', '.609'], ['Chappell, Eric', '8', '1', '0', '1', '0', '.000'], ['Powlus, Ron', '3', '46', '29', '16', '1', '.641'], ['Krug, Tom', '11', '2', '1', '1', '0', '.500'], ['Failla, Paul', '5', '2', '2', '0', '0', '1.000'], ['McDougal, Kevin', '15', '11', '10', '1', '0', '.909'], ['Mirer, Rick', '3', '36', '28', '7', '1', '.792'], ['Rice, Tony', '9', '31', '28', '3', '0', '.903'], ['Grooms, Scott', '10', '1', '0', '1', '0', '.000'], ['Andrysiak, Terry', '2', '7', '4', '3', '0', '.571'], ['Beuerlein, Steve', '7', '39', '21', '18', '0', '.538'], ['Blair Kiel', '5', '29', '18', '9', '2', '.638'], ["O'Hara, Jim", '6', '1', '0', '1', '0', '.000'], ['Karcher, Ken', '12', '1', '0', '1', '0', '.000'], ['Koegel, Tim', '14', '5', '1', '4', '0', '.200'], ['Courey, Mike', '2', '4', '4', '0', '0', '1.000'], ['Lisch, Rusty', '6', '13', '8', '5', '0', '.615'], ['Montana, Joe', '3', '25', '20', '5', '0', '.800'], ['Slager, Rick', '11', '18', '15', '3', '0', '.833'], ['Clements, Tom', '2', '34', '29', '5', '0', '.853']]}