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 Balla328.
Herblore 86 → 96, 5.8m XP
Prayer 92 → 95, 2.1m XP
Summoning 81 → 96, 7.5m XPWeakest area: Potions. Herblore 86 → 96, 5.8m XP. Quests need a public profile, so the quest checks are left out of the score.