4-16 Age-specific Fertility Rate of Childbearing Women by Age of Mother and Birth Order (2002.11.1-2003.10.31)
Data in this table are obtained from the Sample Survey of Population Changes in 2003. The sampling fraction is 0.982‰.
Age	Average Number	Births	1st Births	2nd Births	3rd Births	Fertility	1st Births	2nd Births	3rd Births
	of Childbearing	(person)			and over	Rate			and over
	Woman (person)					(‰)
Total	350677	13328	9159	3541	628	38.01	26.12	10.1	1.79
15-19	47631	250	238	9	3	5.25	4.99	0.20	0.06
15	11978	6	6			0.51	0.51
16	11210	10	8	1		0.85	0.75	0.09
17	9154	22	21	1		2.40	2.28	0.12
18	7833	57	55	1	1	7.27	7.07	0.10	0.10
19	7456	155	147	7	2	20.84	19.72	0.87	0.25
20-24	41296	5066	4614	373	78	122.67	111.73	9.04	1.90
20	7913	446	420	22	4	56.42	53.13	2.77	0.51
21	8134	830	786	37	7	102.05	96.58	4.59	0.89
22	7924	1097	1021	63	12	138.40	128.89	7.99	1.51
23	8423	1292	1160	108	24	153.35	137.67	12.82	2.87
24	8902	1401	1227	143	31	157.39	137.86	16.04	3.49
25-29	48555	4974	3440	1344	190	102.44	70.86	27.68	3.91
25	8496	1234	1030	175	29	145.19	121.19	20.54	3.45
26	8846	1082	824	224	34	122.37	93.17	25.30	3.90
27	9763	1018	706	270	42	104.29	72.28	27.66	4.35
28	10330	872	508	325	39	84.42	49.18	31.43	3.81
29	11119	768	373	351	44	69.04	33.53	31.56	3.96
30-34	62838	2405	743	1431	232	38.28	11.82	22.78	3.68
30	11576	678	278	347	53	58.57	23.98	30.00	4.60
31	12080	580	193	339	48	48.00	15.96	28.08	3.97
32	13015	485	128	314	43	37.25	9.81	24.13	3.31
33	12986	379	86	249	45	29.21	6.58	19.16	3.47
34	13180	283	59	182	42	21.50	4.49	13.80	3.20
35-39	61568	533	106	331	95	8.65	1.73	5.37	1.55
35	12429	206	47	130	30	16.61	3.81	10.42	2.37
36	11585	123	27	75	20	10.58	2.32	6.49	1.77
37	12164	90	14	57	19	7.43	1.17	4.68	1.57
38	12119	70	12	42	16	5.77	1.01	3.45	1.30
39	13271	43	6	27	11	3.26	0.42	2.05	0.79
40-44	41927	74	12	42	21	1.77	0.28	1.00	0.49
40	12422	33	3	22	8	2.63	0.26	1.76	0.61
41	8216	21	4	12	4	2.51	0.47	1.50	0.55
42	6603	9	2	3	4	1.37	0.28	0.47	0.63
43	6945	6	1	2	3	0.90	0.18	0.30	0.42
44	7742	6	2	3	2	0.74	0.20	0.32	0.21
45-49	46862	26	6	11	10	0.56	0.12	0.23	0.21
45	9252	5	1	2	2	0.52	0.11	0.17	0.24
46	9418	6	1	3	2	0.68	0.14	0.30	0.24
47	9294	6	1	4	2	0.69	0.08	0.40	0.21
48	9459	4	1	1	2	0.43	0.10	0.13	0.21
49	9439	4	2	1	1	0.47	0.20	0.14	0.13