The rate of new recurrence at @-@ years was @ % ( > @cm = @ % , < @cm = @ % ) , at @-@ years it was @ % ( > @cm = @ % , < @cm = @ % ) , at @-@ years it was @ % ( > @cm = @ % , < @cm = @ % ) and at over @ years it was @ % ( > @cm = @ % , < @cm = @ % ) .