Percent Strength 15 7 15 7 15 15 15 11 15 9 20 12 20 17 20 12 20 18 20 18 25 14 25 18 25 18 25 19 25 19 30 19 30 25 30 22 30 19 30 23 35 7 35 10 35 11 35 15 35 11