SSC results

We are very happy that our young learners have achieved good results. This year more than 52 thousand students have secured GPA-5, the highest grade point. The achievers, of course, deserve congratulations. I have, still, some questions. First, we should consider that only three or four years ago, a few students got such grading. But within three or four years there is a big change. It is said that in the grading system, teachers are liberal in examining answer scripts.
It is good to become liberal. But becoming over liberal can cause great harm. My second question is that if all students are given the same ranking, how can we choose the brightest?
I hope the education authorities will consider the matter.