From the government of Canada's website
Time spent living in Canada
When you are a permanent resident, you can
live outside of Canada, but must live in Canada for at least two years
in a five-year period. If you live outside of Canada for longer, you
may lose your permanent resident status.
For more information on how long you have to live in Canada, see
Appendix A: Residency obligation of the PR card application package.
From Appendix A: Residency obligation:
Minimum residency obligation
You must meet the residency obligation to get a PR Card.
If you have been a permanent resident for five (5) years or more
- you must have been physically present in Canada for a minimum of 730 days within the past five (5) years.
If you have been a permanent resident for less than five (5) years
- you must show that you will be able to meet the minimum of 730 days of physical presence in Canada within five (5) years of the date you
became a permanent resident.
It looks like you have spent too much time living outside Canada and could get your permanent residency removed. I'd contact your local Canadian Embassy or Consulate.