On Friday, Suncorp said that it had bought back 88 per cent of the A$1 billion of September 2013 government guaranteed bonds it has outstanding.Suncorp bought back A$183 million of the A$200 million of its fixed rate bonds at 104.1 per cent of face value, including a 2.5 per cent allowance for accrued interest. And A$710 million of the A$800 million of its floating rate notes were purchased at 100.9 per cent of their face value, including a 0.6 per cent allowance for accrued interest.Estimates released by the Reserve Bank of Australia on Friday put the remaining stock of outstanding guaranteed bank bonds at around $57 billion. When the guarantee scheme closed to new issuance, in March 2010, 16 banks had issued $166 billion of guaranteed securities in the domestic and the offshore markets.The final guaranteed instrument matures in March 2015.