Bank of Queensland aims to grow its banking business by 1.5 times system growth to 2014 and to reach 14 per cent return on equity by then.In a presentation to a Citigroup investor conference yesterday, BoQ acting chief executive Ram Kangatharan said that BoQ would grow operations in NSW, Victoria and WA. He acknowledged concerns about the business's reliance on Queensland but said the bank had made "tremendous progress" in diversifying.The bank's finance and insurance divisions were delivering more than 15 per cent returns, he said, and its banking operations were targeting a 13 per cent return on equity.