The average time spent on death row is 11.05 years.
If you want to learn more about the history and ins-and-outs of Texas's death penalty, check out this website:
https://www.tdcj.texas.gov/death_row/It's full of juicy details. A couple of things have changed. First, there's been an addition under "Death Row Facts" about the federal death penalty. And, sadly, the TDC no longer posts the inmates' last meals under "Executed Inmates." However, that category has been replaced with their statements (which is telling since most of the inmates confess and apologize for their crimes).
I used this website a lot while teaching Texas State and Local Government for 20+ years. At first, my students were shocked and almost appalled that we collected this information. By mid-semester, they couldn't help themselves and would periodically ask, "Are we killing anyone this week?" I miss them.
Happy hunting, everyone! I bet you'll be addicted to this website … at least for a while.