It was already asked How many questions get closed, and how often are they edited or reopened? but I would like to have statistics depending on the tags. I have the feeling that among my favourite tags, some generate more closed questions than other ones, but a numerical evidence would be welcome.
Per the OP's request I am expanding my comment a bit and posting it as an answer. (With hope that somebody will post something better.)
Data Explorer might be a useful tool for finding similar statistics. (Although you should keep in mind that the data there are only update once a week.)
For example, there exists the query Percentage of Closed Questions by Tag. (Notice that you can modify parameters to remove tags which are too small.)
Perhaps you can find some other similar SEDE queries.I found this one simply by searching for closed percentage tag site:data.stackexchange.com in Google.