condition mean min max 4 h after light 0.8989395 0.822005 0.975874 8 h after light 1.17792 1.11661 1.23923 12 h after light 1.59022 1.44581 1.73463 4 h after dark 2.01924 1.37756 2.62341 8 h after dark 1.8605466666666666 1.54141 2.22429 12 h after dark 0.8513576666666667 0.314483 1.18312