In Search Of: Does anyone have a list of the opponent characters on PVE nodes?

I thought I saw once upon a time a list of all the nodes in the PVE events somebody had been keeping, probably as a way to optimize clear times, but I can't seem to locate it via search. I'm kind of curious to see how many of the available playable characters are featured as opponents in PVE as a percentage of total. I don't imagine anyone is tracking Puzzle Guantlet, though it does seem to feature more recent characters regularly.