condition mean min max 0 h after light 0.3205355 0.160482 0.480589 4 h after light 0.18603 0.108819 0.263241 8 h after light 0.212846 0.108713 0.316979 4 h after dark 0.18397 0.157333 0.210607 8 h after dark 0.07933005 0.0525911 0.106069 12 h after dark 0.132156 0.104331 0.159981