I haven't taken a Myers-Briggs test for years and years and can't remember which other letters I had, but I have always scored 90%-100% I. Then again, I am Swedish

I can be around other people - I even work as a teacher so I have to meet others from time to time. But it drains me of energy, and I absolutely have to have some time to myself every day. Which is one of the reasons I don't have children.