condition mean min max 0 h after light 0.273838 0.273594 0.274082 4 h after light 0.3656805 0.359665 0.371696 8 h after light 0.139251 0.0 0.278502 4 h after dark 0.089568 0.0 0.179136 8 h after dark 0.13548480000000002 0.0898186 0.181151 12 h after dark 0.0890915 0.0 0.178183