Like I said about the study comparing the quality of care of a MDA/CRNA practice with a MDA/AA practice, until someone does some valid research, all we have are opinions.
Both CRNAs and AAs tend to think their opinions are the same as facts.
I gave a reference and a hot link showing where I got the 20% figure. If you choose not to believe my reference, fine.
How about you giving a reference and a hot link for where you got your 10% figure? Maybe your figure is more accurate but until you share it with us, all we have is your opinion.