condition mean min max 4 h after light 203.313356 145.305558 261.321154 8 h after light 228.4550135 210.028338 246.881689 12 h after light 182.7050985 180.505296 184.904901 4 h after dark 547.436378 298.486853 796.385903 8 h after dark 521.2052065 396.581269 645.829144 12 h after dark 256.032206 256.032206 256.032206