condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.04120355 0.0 0.0824071 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.03896725 0.0 0.0779345 8 h after dark 0.087891 0.0 0.175782 12 h after dark 0.0 0.0 0.0