Compensation for Teaching Assistants and Writing Program Administrators

I would much appreciate information about:
1) Pay, benefits and workload for teaching assistants
2) Pay, benefits and workload for writing program administrators.
Working at a new campus of a state university, I have taken on many administrative tasks and I am trying to figure out how my salary compares.
I supervise the teaching assistants and I would also like to see how their compensation compares. I fear we are all underpaid and I hope to use numbers to make an argument to remedy this.
Thank you!