condition mean min max 0 h after light 12.6344 10.6336 14.6352 2 h after light 13.0565 12.0895 14.0235 4 h after light 7.06682 6.20123 7.93241 8 h after light 4.02359 4.01594 4.03124 12 h after light 4.73808 4.60939 4.86677 2 h after dark 4.40183 4.36926 4.4344 4 h after dark 4.570915 3.23425 5.90758 8 h after dark 8.319005 8.024 8.61401 12 h after dark 12.4463 11.3508 13.5418