The Wilson Company is interested in forecasting demand for its XG-667 product for quarter 13 based on 12 quarters of data.The following shows the data and the double exponential smoothing model results for periods 1-12 using alpha = 0.20 and beta = 0.40. 
Based on this information,what is the MAD value for quarters 2-12?
Definitions:
Lymphedema
A condition where swelling occurs in the body's tissues due to a blockage in the lymphatic system.
Mastectomy
A surgical procedure involving the removal of one or both breasts, partially or completely, often performed to treat or prevent breast cancer.
Raynaud Phenomenon
A condition characterized by constriction of the small blood vessels in extremities, leading to color changes, pain, numbness, and sometimes complications in fingers and toes when exposed to cold or stress.
Chronic Arterial Insufficiency
A condition caused by the narrowing of arteries that leads to decreased blood flow to limbs, often resulting in pain and skin changes.
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