Vital Statistics: Births 
Births by place of residence of the mother.National data
Births by age of the mother , marital status of the mother and  maturity.
Units: Births

	Total			Married mother			Unmarried mother			
	Total	At term	Preterm	Total	At term	Preterm	Total	At term	Preterm	
All ages	519,779	479,278	40,501	347,468	320,752	26,716	172,311	158,526	13,785	
Under 15 years	178	161	17	4	4	..	174	157	17	
15 years	539	484	55	14	13	1	525	471	54	
16 years	1,333	1,191	142	63	58	5	1,270	1,133	137	
17 years	2,536	2,293	243	248	218	30	2,288	2,075	213	
18 years	4,357	3,937	420	691	643	48	3,666	3,294	372	
19 years	6,190	5,639	551	1,241	1,137	104	4,949	4,502	447	
20 years	7,755	7,192	563	2,030	1,904	126	5,725	5,288	437	
21 years	8,945	8,306	639	2,679	2,513	166	6,266	5,793	473	
22 years	10,147	9,382	765	3,603	3,356	247	6,544	6,026	518	
23 years	11,593	10,786	807	4,610	4,287	323	6,983	6,499	484	
24 years	13,485	12,537	948	6,121	5,689	432	7,364	6,848	516	
25 years	15,943	14,855	1,088	7,943	7,432	511	8,000	7,423	577	
26 years	19,454	18,108	1,346	10,985	10,212	773	8,469	7,896	573	
27 years	23,084	21,435	1,649	14,125	13,119	1,006	8,959	8,316	643	
28 years	27,535	25,568	1,967	18,243	16,987	1,256	9,292	8,581	711	
29 years	32,262	30,021	2,241	22,824	21,276	1,548	9,438	8,745	693	
30 years	37,705	34,937	2,768	27,712	25,716	1,996	9,993	9,221	772	
31 years	40,547	37,600	2,947	30,474	28,301	2,173	10,073	9,299	774	
32 years	41,452	38,301	3,151	31,673	29,280	2,393	9,779	9,021	758	
33 years	40,481	37,346	3,135	31,273	28,904	2,369	9,208	8,442	766	
34 years	37,791	34,897	2,894	29,425	27,193	2,232	8,366	7,704	662	
35 years	33,925	31,185	2,740	26,364	24,230	2,134	7,561	6,955	606	
36 years	28,543	26,118	2,425	21,736	19,900	1,836	6,807	6,218	589	
37 years	22,787	20,816	1,971	17,113	15,640	1,473	5,674	5,176	498	
38 years	16,940	15,542	1,398	12,485	11,473	1,012	4,455	4,069	386	
39 years	12,246	11,107	1,139	8,819	8,001	818	3,427	3,106	321	
40 years	8,623	7,781	842	5,988	5,393	595	2,635	2,388	247	
41 years	5,528	4,942	586	3,761	3,365	396	1,767	1,577	190	
42 years	3,453	3,078	375	2,350	2,085	265	1,103	993	110	
43 years	1,908	1,652	256	1,266	1,090	176	642	562	80	
44 years	1,202	1,029	173	787	672	115	415	357	58	
45 years	547	461	86	362	302	60	185	159	26	
46 years	319	254	65	203	168	35	116	86	30	
47 years	181	149	32	116	97	19	65	52	13	
48 years	106	80	26	62	47	15	44	33	11	
49 years	60	33	27	30	15	15	30	18	12	
50 years and over	99	75	24	45	32	13	54	43	11	
Notes:
Source: National Statistics Institute