condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0174549 0.0 0.0267787 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.0104367 0.0 0.0313101 6 h after dark 0.0 0.0 0.0 9 h after dark 0.013492166666666666 0.0 0.0404765 12 h after dark 0.0 0.0 0.0