nonrandom random
18 11.6
8.2 8
7 8
8 6
12 4
16 13.5
9.6 5
12.8 8.8
11.8 8
10 10.6
5 15
6.2 5
10.4 7.6
8 7.8
9.2 6.8
8 4.2
9.8 10.6
9 7.2
9.2 9.8
11.2 6.6
8 6.6
9.6 5.4
9 5