There must be more...why have we not categorized them?
I am a 48 yo, recently divorced female INTP who works in healthcare as a compliance officer. About 20 years ago I embarked on a journey to find out why there wasn't anyone around me like me. After taking a Meyers-Briggs test in college...the light bulb went on. Determining that the world would not adapt to me, I learned an external persona to be able to survive.
I have yet to meet a fellow female INTP in real life and have just met my first INTP male.