Interesting! Probably true for me anyway.

BMI - 20
National - 95% below average for my age group
Global - 84% below average for my age group

Most like someone from Ethiopia!
That in itself is funny, because 12 years ago I had a very serious surgery that I almost didn't recover from, and my weight dropped to 85 pounds before I started to recover. I told my family that I looked like an Ethiopian refugee! I'm now a chunky 100 pounds - on a good day!