Whats your highest fertile percentage?!

Kennedy β€’ Engaged to my soulmate! Gave birth to our little boy Kayden Kristopher 02.22.2016πŸ‘ΆπŸ’™ Took 13 months of TTC with PCOSπŸ’• TTC baby #2 started August 2018πŸ’–
Mines 33%. Ive heard of some girls having lower percentages and am just curious how high, or low they can be.