condition mean min max 0 h after light 3.939865 3.03399 4.84574 4 h after light 28.26945 25.6798 30.8591 8 h after light 9.16217 5.99264 12.3317 4 h after dark 2.386615 1.18978 3.58345 8 h after dark 6.29149 5.96556 6.61742 12 h after dark 9.277185 8.87591 9.67846