condition mean min max 4 h after light 5.66165 5.33055 5.99275 8 h after light 4.901265 4.44537 5.35716 12 h after light 6.492375 6.42299 6.56176 4 h after dark 9.04613 8.81219 9.32211 8 h after dark 10.835133333333333 10.089 11.2579 12 h after dark 8.4648 6.56191 11.4901