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 0.0 0.0 0.0 12 h after light 0.222315 0.0 0.44463 2 h after dark 0.0 0.0 0.0 4 h after dark 0.194269 0.0 0.388538 8 h after dark 0.346214 0.0 0.692428 12 h after dark 0.0 0.0 0.0