Unreality SF has published an article by me (or will have tomorrow, thanks to the wonder of time zones) looking at the sales of IDW Comics's Star Trek line since they began back in early 2007. I turn up what I think are some interesting trends, and it also has some charts. Only one graph, unfortunately.
"The Alternative Factors - IDW's Star Trek comics by the numbers"
"The Alternative Factors - IDW's Star Trek comics by the numbers"