INFJs make up 2% of women and 1% of men

INFPs make up 1% of men

INTJs make up 1% of women

1% of the world's current population (7.7 billion) is 77,000,000 (77 million) people!

These statistics vary per country, ethnicity/culture, and generation, but whether it is 0.5% or 2% doesn't matter much.

Here is the article I mentioned that is all about me using (almost exclusively) quotes from other INFJ articles.