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 0.092348 0.0 0.168437 12 h after light 0.117311 0.0 0.241327 3 h after dark 0.07278133333333334 0.0 0.218344 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