Is it rare for a woman to add 5.5 inches after her period?

Personally it was generally rule for me of only adding 2 inches after my first period.

Though a family friend's daughter apparently had her period when she was 14 years and 7 months. She was her mother's exact height of 5'4 at the time. She was even one inch shorter than me. Now after seeing her recently years later (she's now 22), has grown to 5'9.5

Her shoes size went from 7 to 10. The very first time I got introduced to her, she was just 5ft at age 12.

Her parents are 5'4 and 6'3. Is she a rare case for a woman? She claimed her final growth was during her college freshman year at age 19, adding 1.5 inch. That's quite late. She went from 5ft to 5'4 and then from 5'4 to 5'9.5

Is it rare for a woman to add 5.5 inches after her period?
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