MRS in clinical routine

I am looking for this information: where can I find an estimate of the percentage of MRI exams including magnetic resonance spectroscopy/spectroscopic imaging in clinical routine in the world (or maybe only in the US/Europe).

Did you ever get an answer to this? I’d be interested to know as well.

I wonder whether SMRT has an angle on getting an estimate. Am I too pessimistic in assuming <<1%?