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Current Taxes and Deferred Taxes - Income Tax (Details) $ in Thousands, $ in Millions | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 USD ($) | Dec. 31, 2017 CLP ($) | Dec. 31, 2016 CLP ($) | Dec. 31, 2015 CLP ($) | Dec. 31, 2014
Income tax expense: |  |  |  |  |  |
Current year taxes |  |  | $ 105,024 | $ 134,759 | $ 122,147 |
Tax from previous period |  |  | (1,401) | 1,030 | (1,851) |
Subtotal |  |  | 103,623 | 135,789 | 120,296 |
(Credit) charge for deferred taxes: |  |  |  |  |  |
Origin and reversal of temporary differences |  |  | 20,043 | (26,044) | (18,964) |
Effect of changes in tax rate |  |  | (5,729) | (9,158) | (18,234) |
Subtotal |  |  | 14,314 | (35,202) | (37,198) |
Other |  |  | (2,576) | (375) | (777) |
Total tax expense (income) |  | $ 187,448 | $ 115,361 | $ 100,212 | $ 82,321 |
Tax Rate | 27.00% | 25.50% | 25.50% | 24.00% | 22.50% | 21.00%

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