What percent of the population of the world are hermaphrodite?

I'm not sure of the accuracy here but this article states that between one and three individuals per 100,000 population are hermaphrodite in every country.

https://en.wikipedia.org/wiki/Intersex#Population_figures

Here's one that answers the percentage question:

Fausto-Sterling contends that sex is a continuum rather than a collection of discretely defined phenotypes. She proposes that along this continuum are five points: male, ferm (female pseudohermaphrodite), hermaphrodite, merm (male pseudohermaphrodite), and female. Each has variations that shade into the neighboring point. She estimates the frequency of all sexually mosaic conditions (hermaphrodites and pseudohermaphrodites) in humans to be about 1% of the population.

http://www.annefaustosterling.com/fields-of-inquiry/gender/

We are talking about the human population here, right? Because among some fish, amphibians and plants the numbers would be much higher.

Earthworms? All!