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 nataurusblu.
Herblore 101 → 106, 9.8m XP
Summoning 90 → 96, 4.1m XPWeakest area: Summoning. Summoning 90 → 96, 4.1m XP. Quests need a public profile, so the quest checks are left out of the score.