I've just imported a few more housenumbers from the BAG, including #52: https://www.openstreetmap.org/changeset/98692582
That's all I get, though.  No suffixes.  

According to the BAG, a number of suffix numbers are obsolete ('historisch'): https://bagviewer.kadaster.nl/lvbag/bag-viewer/index.html#?searchQuery=0363100012164929&geometry.x=122980.1994&geometry.y=487140.1441&zoomlevel=6&objectId=0363100012164929&detailsObjectId=

Could that be why?