condition mean min max 4 h after light 0.319996 0.243805 0.396187 8 h after light 0.21969249999999999 0.119444 0.319941 12 h after light 0.32451149999999995 0.258001 0.391022 4 h after dark 0.428088 0.425016 0.43116 8 h after dark 0.2441855 0.16889 0.319481 12 h after dark 0.1544915 0.141235 0.167748