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Administrative Expenses (Details) $ in Thousands, $ in Millions | 12 Months Ended
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Dec. 31, 2018 USD ($) | Dec. 31, 2018 CLP ($) | Dec. 31, 2017 CLP ($) | Dec. 31, 2016 CLP ($)
Administrative Expenses |  |  |  |
General administrative expenses |  | $ 231,458 | $ 211,611 | $ 209,304
Outsources services |  | 50,898 | 51,949 | 46,923
Marketing expenses |  | 31,375 | 30,698 | 32,781
Taxes, payroll taxes and contributions |  | 14,937 | 14,242 | 14,161
Board expenses |  | 2,809 | 2,955 | 3,175
Total | $ 477,908 | $ 331,477 | $ 311,455 | $ 306,344

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