condition mean min max 0 h after light 8.87854 8.85616 8.90092 2 h after light 2.654325 2.43184 2.87681 4 h after light 2.4585 2.31343 2.60357 8 h after light 2.50104 1.88024 3.12184 12 h after light 3.39112 3.31851 3.46373 2 h after dark 4.114485 3.92484 4.30413 4 h after dark 6.336985 6.32258 6.35139 8 h after dark 9.345485 9.32888 9.36209 12 h after dark 9.516110000000001 8.92542 10.1068