NS score
Freq
imps NS
imps EW
100
1
5
-5
50
4
-4
-110
17
-1
-140
3
-2
2
Mean NS score =
-90
Discussion to follow.
300
7
-7
200
9
-50
-100
-130
-150
-300
-8
8
-500
-11
11
13
-13
-620
-630
-650
0
-660
-680
420
400
140
14
-120
-6
6
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