condition mean min max 4 h after light 0.02662235 0.0 0.0532447 8 h after light 0.0 0.0 0.0 12 h after light 0.066925 0.0 0.13385 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