condition mean min max 4 h after light 1.3449423333333332 0.306237 2.69894 8 h after light 1.144324 0.410822 1.64526 12 h after light 1.058591 0.370633 1.41551 4 h after dark 1.2645896666666667 0.742179 1.72995 8 h after dark 1.414523 0.719499 2.37197 12 h after dark 1.59651 1.07969 2.44964