condition mean min max 4 h after light 0.171792 0.06483 0.278754 8 h after light 0.09645285 0.0703467 0.122559 12 h after light 0.32357749999999996 0.283639 0.363516 4 h after dark 0.6308445 0.598081 0.663608 8 h after dark 0.517509 0.515135 0.519883 12 h after dark 0.531841 0.442603 0.621079