condition mean min max 0 h after light 11.345749999999999 10.7923 11.8992 4 h after light 7.64407 7.41783 7.87031 8 h after light 8.20752 7.83429 8.58075 4 h after dark 15.3615 13.6008 17.1222 8 h after dark 10.63742 9.51364 11.7612 12 h after dark 10.381835 9.79447 10.9692