condition mean min max 4 h after light 0.657284 0.536674 0.777894 8 h after light 1.88662 1.79348 1.97976 12 h after light 3.2064950000000003 2.90878 3.50421 4 h after dark 2.2201033333333333 2.20944 2.23543 8 h after dark 1.1255773333333334 0.992292 1.35749 12 h after dark 0.7168286666666667 0.519674 0.843599