Percent CF4 & Cell Length \\ 0.1515 & 13.2954 \\ 5.0824 & 13.2672 \\ 10.1226 & 14.5227 \\ 15.1825 & 16.7198 \\ 16.1459 & 19.5397 \\ 18.2113 & 20.0416 \\ 19.1338 & 28.7264 \\