uat2d
ಠ_ಠ
Usage of medication?
Way more broad than that.
Labour force is another metric.
Single working mothers with children?
The single part would lower the score of a country.
It's still far more broad than that.
I'm trying to think of hints that won't give it away instantly, because it's a pretty encompassing topic.
Education is another one of the indicators making up the national rankings.
I'm more or less stumped. My final guess involves general living or working conditions for each nation, but beyond that I can't really say.