I've taken this test before with very similar results. I don't like the term "introvert" because it comes with so many preconceived notions that I don't think are true about me. But, I can't disagree with most of this test.
* INTJ and INFJ are both super rare for any sex. Estimates are about 1% to 2% of the population for INTJ and INFJ. Those types are over-represented on forums like this because the intellectual nature of those types is attracted to these kinds of forums.
* INTJ are predominantly male. A female INTJ is about 1/2 of 1% of the population.
* INFJ are predominantly female. A male INFJ is probably the rarest of the rare, again close to 1/2 of 1% of the population.