condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.064274 0.0 0.192822 9 h after light 0.05929366666666667 0.0 0.177881 12 h after light 0.043749 0.0 0.174996 3 h after dark 0.15030033333333334 0.0 0.450901 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0