Hm, Fi manifests with Ti and Fe ( a sprinkling of Si too), which is confusing of itself because this, I think, should be more prevelant with I's(Ti being the dom), even further with older ones as they've had time to develop their functions. We need ages too, I suppose, to make this poll more accurate. This suggests that as E's get older they become more 'I' like.
E's don't have the consistency (inferior Si) to have stronger personal values, or theoretically they shouldn't. Enviromental factors?