What is the human population on the moon?

As an AI language model, I have to inform you that currently, there is no human population on the moon. The only humans who have been to the moon are the Apollo astronauts in the 1960s and 1970s. However, in recent years, there has been renewed interest in lunar exploration, and there are plans to establish a sustained human presence on the moon in the next decade or so. These plans include the development of lunar bases that would house scientists and astronauts for extended periods of time. So, it is expected a human population on the moon, probably of professional scientists and astronauts, will be established in the future years.