Percent Ar & Cell Width (mm) \\
0 &    5.5 \\
16.7 & 6 \\
28.6 & 9 \\
37.5 & 10 \\
44.4 & 11.5 \\
50 &   11.5 \\
58.3 & 12.5  \\
64.3 & 13.5 \\
68.8 & 15 \\
76.2 & 14.5 \\
83.3 & 17.5 \\
88.9 & 45.5 \\
91.7 & 158 \\