What is the IATA of the airport with 3848 traffic in 2010-11?
{'header': ['Rank', 'Airport', 'Location', 'IATA', '1985–86', '1990–91', '1995–96', '2000–01', '2005–06', '2007–08', '2009–10', '2010-11'], 'page_title': 'List of the busiest airports in Australia', 'page_id': '', 'types': ['real', 'text', 'text', 'text', 'real', 'real', 'real', 'real', 'real', 'real', 'real', 'real'], 'id': '1-17419587-1', 'section_title': 'Top 11 by passenger traffic 1985–2011', 'caption': 'Top 11 by passenger traffic 1985–2011', 'rows': [['1', 'Sydney Airport', 'Sydney , New South Wales', 'SYD', '9497', '12361', '19878', '25814', '28996', '32701', '34458', '36624'], ['2', 'Melbourne Airport', 'Melbourne , Victoria', 'MEL', '6476', '8346', '12972', '16881', '21041', '23943', '25918', '27607'], ['3', 'Brisbane Airport', 'Brisbane , Queensland', 'BNE', '3457', '5246', '9236', '12467', '16016', '18298', '18889', '20278'], ['4', 'Perth Airport', 'Perth , Western Australia', 'PER', '1939', '2508', '4145', '5162', '7005', '8952', '9992', '11328'], ['5', 'Adelaide Airport', 'Adelaide , South Australia', 'ADL', '2082', '2461', '3743', '4443', '5767', '6619', '7016', '7021'], ['6', 'Gold Coast Airport', 'Gold Coast , Queensland', 'OOL', '587', '1288', '2595', '2891', '3518', '4323', '5186', '5261'], ['7', 'Cairns Airport', 'Cairns , Queensland', 'CNS', '778', '1090', '1993', '1888', '3731', '3777', '3550', '3848'], ['8', 'Canberra International Airport', 'Canberra , Australian Capital Territory', 'CBR', '1008', '1124', '1750', '2107', '2550', '2853', '3258', '3206'], ['9', 'Hobart International Airport', 'Hobart , Tasmania', 'HBA', '506', '590', '850', '974', '1606', '1758', '1856', '1903'], ['10', 'Darwin International Airport', 'Darwin , Northern Territory', 'DRW', '407', '496', '932', '1078', '1219', '1562', '1569', '1743']], 'name': 'table_17419587_1'}