condition mean min max 4 h after light 0.162338 0.148629 0.176047 8 h after light 0.1199780001395 2.79e-10 0.239956 12 h after light 0.0009502 0.0 0.0019004 4 h after dark 0.22548986666666668 0.0688396 0.456517 8 h after dark 0.3278126666666667 0.220723 0.475872 12 h after dark 0.251911 0.173785 0.314735