condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0352055 0.0 0.070411 4 h after light 0.142832 0.0 0.285664 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0393367 0.0 0.0786734 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0361091 0.0 0.0722182