BNC Type Length Distribution
Chars	Types
1	213
2	1,639
3	9,000
4	14,582
5	21,143
6	28,326
7	31,616
8	30,133
9	26,065
10	20,591
11	15,290
12	10,815
13	7,512
14	4,890
15	3,124
16	1,911
17	1,193
18	690
19	469
20	249
21	145
22	88
23	55
24	39
25	31
26	27
27	9
28	4
29	4
30	3
31	3
32	4
33	0
34	0
35	0
36	1
37	0
38	1