condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.027587333333333335 0.0 0.165524 10 h after light 0.0 0.0 0.0 14 h after light 0.023733 0.0 0.142398 18 h after light 0.0 0.0 0.0 2 h after dark 0.02280966666666667 0.0 0.136858