looking for documents describing frequent causes for line cuts

has anyone come by documents containing some statistics regarding leading
causes for cuts in fiber, power, cable lines?

I seem to remember one which included % cuts due to equipment failure,
maintenance, weather, rodents, boring, car accidents, etc.

but alas, I cannot find it in my archives.

On an amusing note:


also amusing:

but I'm looking for something slightly more efficacious than anecdotal.

off-list replies (and, why not, some of them are really funny) anecdotes
are welcome.

Here's one I came across from Southern Telecom that seems to give some hard
numbers on incidents they've experienced with their fibre lines being

Hope this is useful for your needs.

Link: http://www.southern-telecom.com/AFL%20Reliability.pdf