condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0295928 0.0 0.0591856 12 h after light 0.01641685 0.0 0.0328337 2 h after dark 0.02538255 0.0 0.0507651 4 h after dark 0.0286916 0.0 0.0573832 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0