condition mean min max 0 h after light 8.12116 5.13542 11.1069 4 h after light 1.7411 0.0 3.4822 8 h after light 3.0317585 0.845277 5.21824 4 h after dark 2.1044045 0.839109 3.3697 8 h after dark 2.95574 2.54565 3.36583 12 h after dark 3.79308 3.41293 4.17323