condition mean min max 4 h after light 37.230147 33.759214 40.70108 8 h after light 49.3929155 46.461536 52.324295 12 h after light 57.298615500000004 47.083269 67.513962 4 h after dark 90.505395 57.932153 123.078637 8 h after dark 83.960004 56.014532 111.905476 12 h after dark 47.472317 47.472317 47.472317