condition mean min max 4 h after light 1.1617193333333333 0.386698 1.75038 8 h after light 1.703792 0.205496 3.35603 12 h after light 1.6530863333333332 0.914579 2.4425 4 h after dark 1.6616966666666666 1.29024 2.37369 8 h after dark 0.979028 0.603302 1.61792 12 h after dark 3.23793 2.41314 3.69864