CRS score determines your eligibility to obtain Canada permanent residence. Sometimes competition makes chances tough, in the year 2016, CRS score released by the Canada Express Entry is consistently moving, there is no drastic fall or rise. The scores never crossed the 500 mark in 2016.
The previous draw has shown the decrease of points the CRS score was 453, one thing we could say that Express Entry gives you more chances, you can enhance your skills, improve your chances.