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21) Mortgage Servicing Rights: Summary of Unpaid Principal Balances of the Servicing Portfolio (Tables) | 12 Months Ended
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Dec. 31, 2018
Tables/Schedules |
Summary of Unpaid Principal Balances of the Servicing Portfolio |
| Years Ended December 31
| 2018 |  | 2017 |
Servicing UPB | 2,941,231,563 |  | 2,924,868,843 |

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