condition mean min max 0 h after light 1.31504 1.30086 1.32922 2 h after light 0.819724 0.610498 1.02895 4 h after light 0.8728365 0.798076 0.947597 8 h after light 1.0583844999999998 0.873559 1.24321 12 h after light 1.9696099999999999 1.45638 2.48284 2 h after dark 2.04892 1.86608 2.23176 4 h after dark 1.607445 1.04527 2.16962 8 h after dark 2.370115 2.29375 2.44648 12 h after dark 1.60141 1.03191 2.17091