I don't know where you got my definition of balanced, but I certainly never implicated any specific functions. Let me show you some math:
Xi = 100% b/c everyone has an introverted function
Xi d = 50% b/c half of Xi functions are dynamic
Xe = 100% b/c everyone has an extroverted function
Xe s = 50% b/c half of Xe functions are static
for Xi d and Xe s, 50% x 50% = 25%
if you would have said Xi d or Xe s,
and you did not, the probability would equal 75%
unfortunately these calculations are irrelevant
because you don't know what my definitions are!
But nowhere do I see 50%
And I can't trust a statistic concerning type distributions in the general population until I can verify that all parties were accurately typed.