Semitool Corp. has an expected excess return of 10% for next year. However, for every unexpected 1% change in the market, Semitool's return responds by a factor of 1.3. Suppose it turns out that the economy and the stock market do better than expected by 8% and Semitool's products experience more rapid growth than anticipated, pushing up the stock price by another 5%. Based on this information, what was Semitool's actual excess return?