It's important to note that sentences prescribed by the Criminal Code or handed down by the judiciary often end up not being the sentences served by those convicted and sentenced to those sentences, in that there's pretrial custody time, which is often two-for-one and these days in some cases three-for-one. You also have essentially an automatic eligibility for parole after a third of a sentence.
I have to tell you that I'm quite disappointed. It appears as if the government missed an opportunity on sentencing here.