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 l0veyousis.
Herblore 82 → 96, 7.1m XP
Summoning 83 → 96, 6.9m XPWeakest area: Potions. Herblore 82 → 96, 7.1m XP. Quests need a public profile, so the quest checks are left out of the score.