condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.036265649999999997 0.0244184 0.0481129 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0