1. Remember to keep this section in sync with your Travel/Work/Education history. For instance, you cannot be working in NY for 2 years and simultaneously have a residence address in Germany for the same duration.
2. If you've moved around within the same country, stick to your permanent address in that country or stick to the address where you've stayed the longest. CIC probably uses this section to prompt PCC requests later in the application so there is no real need of updating all addresses within the same country. For instance, if you were on a 6 month work deputation at a place 200 miles from where your family lived and in the same country, it is perfectly legit to give your family's address for that duration.
All the best!