Lower reading achievement scores and grades in fifth grade contributed to reduced grades in middle school and thereby contributed to a 40% lower high school graduationrate.
五年级学生的阅读成绩分数较低，导致其进入中学后成绩下降，进而导致高中毕业率下降40%。
2
Since then the graduationrate has improved by ten to fifteen percent.
自那以后，毕业率提高了10%到15%。
3
I don't see lower crime rates. I don't see a greater high school graduationrate.