Statistic on usage of context menu

I'm wondering if there is any statistic on how users edit links and images in FCKeditor.

What is interesting to me -- how many % of users use toolbar buttons to edit/remove link or edit image instead of using context menu.

It would be great to have such information (when you know how people use it, you can do better design).
It's also interesting in comparison Mac vs PC (Mac users use context menu less then PC's)