condition mean min max 4 h after light 0.9007135 0.560657 1.24077 8 h after light 0.8348515000000001 0.753251 0.916452 12 h after light 1.3102049999999998 1.26341 1.357 4 h after dark 2.69015 2.45926 2.87534 8 h after dark 2.270923333333333 1.75395 2.59717 12 h after dark 0.846723 0.558909 1.41904