@BKK2
Thanks! I tried but I never could find Sega Numbers.
1989 - 1994 numbers come from "Video Games: A report on the supply of video games in the UK" from Competition Commission. The page you posted was Chapter 6.
1992 - 2002 numbers come from "CONTEMPORARY STRATEGY ANALYSIS" by ROBERT M. GRANT. Heres their latest pdf: Case Eleven.
I'll put them on the chart. Again this is very useful thanks BKK2.