If birthdays are assumed to be distributed symmetrically. If you were born in august you'd need ~12 fewer people and for April you'd need ~12 more.[1] Not sure

If birthdays are assumed to be distributed symmetrically. If you were born in august you'd need ~12 fewer people and for April you'd need ~12 more.[1] Not sure how that looks for the worlds population probably averages out pretty well regardless. [1]: https://www.panix.com/~murphy/bday.html https://www.panix.com/~murphy/bday.html