condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 10 h after light 0.0 0.0 0.0 14 h after light 0.027395 0.0 0.16437 18 h after light 0.025241166666666665 0.0 0.151447 2 h after dark 0.0 0.0 0.0