condition mean min max 0 h after light 2.81463 0.0 5.62926 2 h after light 1.74613 0.0 3.49226 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 1.989645 0.0 3.97929 2 h after dark 2.2762 0.0 4.5524 4 h after dark 0.83764 0.0 1.67528 8 h after dark 0.4901275 0.0 0.980255 12 h after dark 0.447347 0.0 0.894694