condition mean min max 0 h after light 2.128765 1.34228 2.91525 2 h after light 0.0 0.0 0.0 4 h after light 0.689025 0.0 1.37805 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 1.507915 0.0 3.01583 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0