condition mean min max 4 h after light 13.279749 6.622536 26.16074 8 h after light 2.8992166666666668 1.51945 4.786443 12 h after light 2.1709533333333333 1.360443 3.6872849999999997 16 h after light 6.955914666666667 5.4669099999999995 9.506143 4 h after dark 56.25288 42.65595 67.22086999999999 8 h after dark 5.776502333333333 3.7986489999999997 7.332304