Table 2.

Distribution of number of cases in respect to age

Age	11	12	13	14	15	16	17	18	19
#	14	81	65	252	354	303	297	498	348
owls	H, K	F, H, K	F, H	F, G, I, J, K	F, G, I, J, K	H, J, I, K	H, I, J	F, G, H, I, J, K	F, G, H, I, K

Age	20	21	22	23	24	25	26	27	28
#	188	319	259	119	174	459	194	212	44
Owls	G, H, I, J	F, G, I, J, K	F, I, J	H, I, K	F, I, J	F, G, H, I, J, K	F, H, I	G, I, J, K	I

Age	29	30	31	32	33	35	36	37	38	39	40	49	50	56	65
#	102	117	14	52	186	35	124	96	27	71	80	102	55	31	85
Owls	I, J	K	H	H	I, J, K	I	J, K	J	H	J	G, J	J	K	I	K