size	number	percentage of the total overlap number
1	0	0.00
2	0	0.00
3	0	0.00
4	1	1.72
5	10	17.24
6	16	27.59
7	0	0.00
8	0	0.00
9	1	1.72
10	9	15.52
11	3	5.17
12	0	0.00
13	2	3.45
14	1	1.72
15	0	0.00
16	2	3.45
17	0	0.00
18	2	3.45
19	6	10.34
20	1	1.72
21	2	3.45
22	0	0.00
23	2	3.45
