Following data pertains to Castle State Bank. Balance Sheet: Cash 104.894, Securities 592.375, Net loans 1187.263, Net premises 291.645; Deposits 1101.305, Non-deposit borrowings 785.021, Common stock $10.12, Surplus $122.546; Income Statement: Interest Income 400.735, Interest expense 212.871, Noninterest income 50.295, Noninterest expense 96.417, Provision for loan losses 62.023, Securities gains (losses if negative) 4.52, Taxes 42.143. What is Castle State Bank's net noninterest margin? Decimalize your answer, round to four decimals. E.g., if your answer is 10.445%, record it as 0.1045.