condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 4 h after dark 0.05217 0.0 0.10434 8 h after dark 0.02637835 0.0 0.0527567 12 h after dark 0.0 0.0 0.0