Percent Air & Cell Width \\
10 &  2.5 \\
15 &  4 \\
20 &  3.5 \\
50 &    8 \\
54 &    10 \\
60 &   14.5 \\
65 &  26 \\
70 &   57 \\
72 &  89.5 \\
74 &   143.5 \\
76 &   107 \\