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What is the Mean Absolute Deviation of this forecast model?nYearDtFtEt|Et|Et2120139.69.80.20.20.04220147.59.62.12.14.41320157.27.50.30.30.09420167.07.20.20.20.04520176.87.00.20.20.04620185.56.20.70.70.49720195.35.50.20.20.04820205.55.3-0.20.20.04 Total:3.74.15.19

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