condition mean min max 3 h after light 0.0333238 0.0 0.0999714 6 h after light 0.178283 0.0 0.396516 9 h after light 0.141393 0.127614 0.155748 12 h after light 0.1181255 0.0627723 0.197926 3 h after dark 0.10783033333333333 0.0 0.161749 6 h after dark 0.32889203333333333 0.0805801 0.558938 9 h after dark 0.20276166666666667 0.178236 0.220956 12 h after dark 0.03118025 0.0 0.0623605