condition mean min max 2 h after light 0.8098408333333333 0.314564 1.26964 6 h after light 0.6928328333333333 0.145771 1.30971 10 h after light 0.7753410000000001 0.591684 0.959928 14 h after light 0.5766831666666666 0.304451 1.13624 18 h after light 0.65085 0.0 1.33109 2 h after dark 0.8370871666666666 0.45785 1.20854