condition mean min max 4 h after light 83.50195 65.387841 101.616059 8 h after light 116.904764 67.837381 165.972147 12 h after light 329.0699605 183.082916 475.057005 4 h after dark 691.187415 386.534407 995.840423 8 h after dark 1048.357673 762.483289 1334.232057 12 h after dark 74.086233 74.086233 74.086233