There was an accidental under count of 7000 last year. So last year was the second strongest growth year behind this year.
Here's a few graphs:
Population and unit splits among 25 actively developing new communities vs established communities.
I believe this one has a slightly different definition of 'new communities' that dates back to some recently completed ones (still experiencing natural increase)
You can see a pretty big shift in the past few years toward redevelopment and increased population growth in established areas: