83
Conservatives report higher happiness levels and self-reported mental health than liberals. No data charted for Hexbears
(hexbear.net)
There's more data points to this chart at the link
https://www.natesilver.net/p/what-explains-the-liberal-conservative
EDIT: added image
Actually just looked at the article/larger chart. It does have income section and it plays out like you would imagine, but the gap between lib-conservative stays more or less constant. I don’t see an obvious display of proportion of each, but he does say the average American rates about 58-60 score so I suppose you could sort of backwards engineer from there.