condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.04033956666666667 0.0 0.0694316 9 h after dark 0.029459700000000002 0.0 0.0883791 12 h after dark 0.018965366666666667 0.0 0.0568961