Well, the team of our city was quite busy the past months. Starting from a ratio of somewhat of ~60%, we collected the remaining ones of total 23080 housenumbers since January. At our meetup (with a special 'damn housenumbers completed!' BBQ) we decided that 97% is enough to say that we are finished. The remaining ones are mostly abandoned areas, supermarkets, ... so stuff thats not that easy to fill in in the near future.
Thanks again folks, this community really rocks :-)