My blood sugar went from 116 to 147 to 80 after lunch- What’s a normal glucose curve/graph after a meal?

I can find “normal” ranges, but I can’t find any graphical curves (several readings) over time of what could be normal after a meal.
Before lunch, my glucose was 116. Thirty minutes after lunch (healthy organic peanut sauce saute with a little sticky rice), my glucose went up to 147 which isn’t too bad. But then in thirty more minutes it dropped to 80. These numbers aren’t too bad or out of range, but a 70 point drop in a half hour seemed excessive. Is this bad, pre-daibetic, any thoughts? Are there graphs I can compare?

The table in the link is exactly what you need. It’s a curve of “normal” people.

http://www.phlaunt.com/diabetes/16422495.php

Insulin and Fat Storage

Glucose Meter-Check Normal Control Solution for Accu-Chek …