Leveling in my m20 games

I came across some of my older posts and saw where I'd made an offhand comment about leveling up near the beginning of a game about once ever 4-5 sessions, and having that slow down, and that an ideal, full 10-level game could have about 100 sessions. I whipped up a quick chart showing what level I'd expect the PCs to be at at every session. Realistically, of course, I probably wouldn't be this rigid, but setting it out like this would make it much less likely that I'd get carried away and start doing things too fast, or forget about it and do it too slow. It also could serve as a baseline to use to put off-set with the main chart if I have a new character join at 1st level. Although typically, I usually have new characters join at the same level as the rest of the group when I've done it in the past.

UPDATE: That's a ridiculous ridiculous way to lay this out. Let me summarize it more easily. The numbered bullet point would be the level of the characters in the session.

1. Sessions 1-4
2. Sessions 5-11
3. Sessions 12-19
4. Sessions 20-31
5. Sessions 32-43
6. Sessions 44-55
7. Sessions 56-67
8. Sessions 68-79
9. Sessions 80-91
10. Sessions 92-100
11. No more play. Game is over.