Percent N2 & Cell Width (mm) \\
0 &     5.5 \\
16.7 &  9.5 \\
28.6 &  14 \\
37.5 &  17  \\
44.4 &  22.5 \\
50 &    32.5 \\
58.3 &  51 \\
61.5 &  74 \\
64.3 &  103.5 \\