NS score
Freq
imps NS
imps EW
600
2
12
12
110
5
4
4
100
100
8
2
140
3
3
200
5
Mean NS score =
-30
Discussion to follow.
500
1
11
11
200
6
6
1
130
150
180
300
500
10
10
950
13
13
1100
14
14
-60
630
130
90
7
7
9
9
170
50
450
16
-350
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