Thanks scylla and Leon.
I was in the impression that it is last 5 years in Canada, does not matter if i were PR or not.
Do you have the link from cic where this information is listed?
You're confusing the PR rule with the citizenship rule. For citizenship, you can use the year before you became a PR towards your citizenship residency requirement (each day spent in Canada before you became a PR counts as half a day toward your citizenship residency requirement).
For PR you can only count the days since you landed and became an actual permanent resident.
I'm leaving for the day and unfortunately don't have time to find a link...