NS score
Freq
imps NS
imps EW
400
2
3
3
420
1
2
460
1
490
21
0
990
11
11
Mean NS score =
-490
Discussion to follow.
110
5
5
100
4
4
90
50
90
100
110
120
140
150
170
200
-60
470
9
9
200
50
70
80
10
10
620
650
680
-650
Go to boards 21-24
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