BKK2 on 01 December 2008
I take it Famitsu have only been tracking sales since 2000. Here's a graph of sales from 1983 - 1999, unfortunately it doesn't include PC Engine, but final shipments were 5.84m for all models, of which 3.92 were the original PC Engine.
From this graph we can see that around 1.4m 8-bit Sega systems were sold (I counted the pixels once), SG-1000 shipped 400,000, so around 1m Master Systems were sold in Japan. PS1 peaked in 1997 with around 5m sales.
