condition mean min max 4 h after light 1.2644 1.1113 1.4175 8 h after light 1.977075 1.70247 2.25168 12 h after light 1.4707050000000002 1.29984 1.64157 4 h after dark 2.1330466666666665 1.3241 2.75742 8 h after dark 1.3931753333333332 0.916546 1.80426 12 h after dark 1.5531126666666666 0.595225 3.06432