Structure,No of logged hobnail SFs,No of hobnails,No of contexts,Contexts with hobnails as a % of SFs per structure
21,3,3,2,10
23,1,1,1,33
24,1,1,1,6
25,4,4,3,17
26,4,4,4,31
27,14,16,9,32
28,9,10,9,33
29,1,1,1,33
30,2,2,2,40
31,19,21,17,33
32,2,2,2,40
33,10,13,10,42
34,1,1,1,25
TOTALS,71,79,-,-