Consulting the Codex…
RS3 · Skills · Activities · Quests
The Codex keeps its readings for 400 days, so you can go back that far, to the first day it read 4nicatinzbra.
Herblore 76 → 96, 8.3m XP
Prayer 70 → 95, 8.0m XP
Summoning 56 → 96, 9.5m XPWeakest area: Combat stats. Best style is Melee at 72, 90 is the usual bar. Quests need a public profile, so the quest checks are left out of the score.