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 7 Day Edge.
Herblore 80 → 96, 7.5m XP
Prayer 84 → 95, 5.8m XP
Summoning 67 → 96, 9.1m XPWeakest area: Potions. Herblore 80 → 96, 7.5m XP. Quests need a public profile, so the quest checks are left out of the score.