Havent seen this data before but i think it's a nice insight on how women lie a lot in these kind of topics, the numbers seem random and dont represent any reasonable tendency, it means they're making it up
Your reasoning skills are not being well displayed here, we're at 8.1+ billion because we're a pos-industrial society, highest birthrates are found in developing countries in SEA and Subsaharian africa, most stuff discussed here only applies for urban western societies