Thank the shitty nutritional documentations courtesy of your local governmental agency for that almost reality.
Assuming you prefer only one gender, you're already down to 50% roughly.
25% of the population is probably kind of old >65, so it would be cruel to expect many them to look too attractive.
So you're at about 37.5%.
Obesity rates are 50% or over so
So 18.75% would be nominally attractive, at least not obese.
I suggest that 1% of people being attractive is a bit low, probably closer to 9% assuming you're not too picky.
Twice as many if you're bi.