A thought crossed my mind while driving home yesterday. Are certain personality types more likely to hold Objectivist values than others?

Personally, I was thinking in terms of Myers-Briggs personality types. I am an INTJ and have always leaned towards logic and trying to make all of my emotions rational and logical to the situation. Maybe, because this is my personality, I was more likely to be drawn into Objectivism and similar ideals.

What is your opinion on this and/or (to get an idea of how many of us share the same personalities) what are your personality types?