I've actually little idea. See, it works with a point system here. You take exams in lessons you choose by divisions (Literary, Scientific, Technological) and each, depending on your avg points on all the lessons within your division, you also get into a University. (Example, If I have an avg of 18 I can't go into a University school that needs 19, but I can go to anywhere lower)
But I bored you enough. Essentially, seeing my grade average in the exams next year will be somewhere around 16-17 (Medium-to-Good) I plan on studying Journalism or English Literature. Someone's got to do the boring jobs ; p