condition mean min max 4 h after light 1.558737 0.439274 2.6782 8 h after light 0.858496 0.449972 1.26702 12 h after light 1.993555 1.86206 2.12505 4 h after dark 8.23451 6.5312 9.44037 8 h after dark 8.219956666666667 6.13979 9.65369 12 h after dark 0.83476052 0.0 2.50428