sub_count	fq
0	20130
1	2557
2	801
3	374
4	232
5	80
6	77
7	27
8	3
9	17
10	20
11	3
12	1
13	10
14	1
15	1
16	1
17	2
18	0
19	1
20	0
21	4
22	0
23	0
24	2