Looking back over the 1988 season it was just ridiculously dominant. Having played with different points systems in the past, it's also true that it rarely makes much difference. I'm happy to assume that it makes little difference in any of the cases if you don't want to go to the effort of doing more.
Just as a point of comparison, this is what you get looking at simply the percentage of race wins in a year for a team (I stole the stats from statsf1):
1) McLaren, 1988, 94%
2) Ferrari, 2002, 88%
3) Ferrari, 1952, 88%
(Mercedes win all the remaining races this season: 84%)
4) Ferrari, 2004, 83%
5) Mercedes, 2014, 81% (to date: 13 out of 16 race wins.)
6) Ferrari, 1953, 78%
7) Williams, 1996, 75%
8) McLaren, 1984, 75%
9) Lotus, 1963, 70%
10) Red Bull, 2013, 68%
(Mercedes win no more races this season: 68%)
The top 5 from your original list all appear somewhere in this list, but the rest are different