condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.95779 0.0 2.87337 10 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 10 h after dark 0.6274766666666667 0.0 1.88243