Any changes in AP exam curves?

<p>Does anyone know about any exams whose curves have been significantly lowered or raised since the beginning of AP exams? On a side note, a 31/35 on the multiple choice of a past AP Physics C: Mechanics exam (assuming I do as well, maybe a little worse on free response) is a 5, right? Also, the curve is usually more generous for E&M than for Mechanics right?</p>

<p>bu-bu-bu-bump?</p>