I'm lazy though, want to imput scenarios with 12 turns and generate a list. With 2500 scenarios (and about 400 more per year coming out) I'm too old to look things up one by one.
Go to the search page and click Search. It will show all the scenarios. Then click the down or up arrows next to Turns in the header and it will sort the results turns. Then scroll down until you get into the turn length you are interested in with your mouse, copy the results to the clipboard by pressing Ctrl+C and then paste them into Excel using Ctrl+V.