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I got some info by going through December Byte issues, so that will start things off. Others can fill in from whatever info they can find. I chose Byte since their coverage was quite broad, and the December issue to narrow things down to a given year. However, it is US-centric, and the NEC chips never penetrated deeply into the US market. However, mentions were slimmer than I would have thought, particularly with respect to ads from standard parts suppliers (at the time) such as Jameco - at best I found mentions of the various V20 and V30 versions, nothing past (even as late as Jameco's Feb-Apr 1994 catalog, all that are listed are the V20 and V30s). I suppose Computer Shopper would be another good option, but I have not had the time to get to those.
Data so far, collected from Byte, Wikipedia and other sources:
I strongly suspect that a search on Asian or European magazines may well yield more and better data.