condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.081252 0.0 0.243756 9 h after light 0.07845 0.0 0.23535 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.22817633333333334 0.0 0.426826 9 h after dark 0.09055400000000001 0.0 0.271662 12 h after dark 0.0 0.0 0.0