The UK’s second largest insurer Axa PPP Healthcare has reported a 3% increase in net premium income for the year ended 31 December 2013.Premiums written in the year rose to £1,149.2m from £1,141.7m in 2012. Revenue ceded to reinsurers was down to £16.7m (2012: £46m) leaving net insurance premium revenue of £1,132.5m (2012: £1,095.7m). Investment…