A stock was trading at $118.50 at the end of year 1. It was trading at the end of year 2 at $111.80 immediately after giving a dividend of $3.80. At the end of year 3. it was trading at $122.00 immediately after giving a dividend of $4.00. Finally, it was trading at $132.10 at the end of year 4 without giving out any dividend. What was the arithmetic average annual return of this stock for the three years between years 1 and 4?