condition mean min max 0 h after light 0.1451464 0.0579758 0.232317 4 h after light 0.11718999999999999 0.057161 0.177219 8 h after light 0.0876951 0.0573582 0.118032 4 h after dark 0.3992525 0.342988 0.455517 8 h after dark 0.402099 0.228396 0.575802 12 h after dark 0.285076 0.173694 0.396458