I don't have the ability to look at Continental loads anymore, but I used to do the STL-IAH commute. I can tell you it was always full. I sat in the jumpseat a lot. I rarely got a seat in the back. Talking to one of the Continental agents in STL just last week I was told they've been very full, but the last several weeks loads have been a little lighter.
I know that doesn't really help you with exact loads, but hopefully it helps a little.