DIFFERENCE IN AVG.		SPOT	MAGIC NUMBER
0.1	-	0.9	1
1.0	-	1.8	2
1.9	-	2.7	3
2.8	-	3.6	4
3.7	-	4.5	5
4.6	-	5.4	6
5.5	-	6.3	7
6.4	-	7.2	8
7.3	-	8.1	9
8.2	-	9.0	10
9.1	-	10.0	11
10.1	-	10.9	12
11.0	-	11.8	13
11.9	-	12.7	14
12.8	-	13.6	15
13.7	-	14.5	16