condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 10 h after light 0.11256816666666666 0.0 0.372893 14 h after light 0.21757433333333334 0.0 0.948396 18 h after light 0.17237616666666666 0.0 0.410283 2 h after dark 0.0 0.0 0.0