condition mean min max 0 h after light 137.131 134.26 140.002 4 h after light 99.155 94.466 103.844 8 h after light 14.153 13.6452 14.6608 4 h after dark 2.5225400000000002 2.39746 2.64762 8 h after dark 58.58015 50.3673 66.793 12 h after dark 148.5335 144.684 152.383