condition mean min max 2 h after light 1.271086 0.459199 2.01305 6 h after light 0.8018935 0.529673 1.18531 10 h after light 0.9968801666666667 0.360509 1.70621 14 h after light 1.066042 0.53335 1.79269 18 h after light 1.1499421666666667 0.733403 1.57253 2 h after dark 1.3281083333333332 1.13854 1.63419