Consider the meaning of 99% and 1%.
Consider a bell curve, graphical representation of a normal distribution.
The vertical axis can represent ANY human trait.
A normal distribution exists for ANY human trait:
Intelligence.
Extroversion.
Venality.
Greed.
Generosity.
Self-sacrifice.
Musical talent.
Speed reading.
Intuitiveness
Sociopathy.
Psychopathy.
Etc.
You name it, every trait can be described on a Bell Curve.
For each trait, <1% of the population falls 3 standard deviations ABOVE average.
Likewise <1% falls 3 standard deviations BELOW average.
1% understood?