I wouldn't go by review grades alone. Grades can vary with the reviewers mood or tastes.
But if you want an overview of grades for older games, check the web archives pages for the old justadventure website.
For example ***here***
for 1999 or ***here***
(You may get an old JA popup at the 2nd link if you don't have popups blocked, but it seems to be harmless)
At one time some JA reviewers split and JA lost some reviews, so you may want to check various years in between at the archive.
Adventuregamers used to list stars (or ? out of 5 with 5 being best) next to their review lists.
You can check the web archive of ***their reviews for 2003***
The old Quandaryland site used stars (1 to 5) at one point.***Here's the Quandaryland review list***
Their reviews have been mirrored at metzomagic.com, but not the grades in the list of games (as seen ***here***
. Originally Quandary did not use grades, and only started adding them so they'd be included at sites like metacritic.