I've been searching for all the PPM (proc per minute) of items and spells in vanilla, but I realized that it's a much harder and longer endeavor than I first initially believed. If anyone knows of a list or some old research - I'd like to read it.
The hardest values to determine so far are weapons. So far I've found that two-handed weapons have an average of 5%~ to proc, while one-handed have half that. This information is extremely speculative and not concrete.
I'll be adding to this post later on with an extensive list of required items and spells.
US Ret or Holy Pali LF Guild - DM me
"This information is extremely speculative and not concrete." From anything I have ever read, this data is just extrapolated from known data and then a standard deviation is applied. I think private server values are +/- 3% based on their own estimates? I'm not sure that we have access to this information unless someone is able to pull it from Classic.