It's important for the hiring manager to know that you are able to set personal and/or career goals and then dedicate yourself to achieving those goals. A career related goal/achievement is always best.
"This year I set a goal for myself to successfully hire and train 3 new production workers and ensure an 87% retention rate in our production department. I dedicated myself to training these employees and kept a closer beat on that department. We closed the year at a 94% retention rate and I was very pleased with this success."