condition mean min max 4 h after light 46.081322 40.284943 51.877701 8 h after light 31.7156135 26.882092 36.549135 12 h after light 31.071485 26.198819 35.944151 4 h after dark 22.3234995 21.333333 23.313666 8 h after dark 21.4848815 20.516122 22.453641 12 h after dark 26.290855 26.290855 26.290855