It is always tempting the feed the journos with a good survey, especially if it comes from a "reputable source", such as analysts for instance. If you fancy chasing ambulances, check this one from Aberdeen for Planview.
Of course, you don't have to be Aberdeen to deliver the number wanted:
Spin Bunny, the (great and notorious) PR blog, has a good one on why PR agencies like doing this:
Spin Bunny: Surveying PR surveys