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Synthetic fertility index of the Basque Country and average age of maternity by year, according to historical territory. 2015-2024

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Euskal Estatistika Erakundea/Instituto Vasco de Estadística

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	Basque Country		Araba/Álava		Bizkaia		Gipuzkoa		1st range		2st range		3st range
	Synthetic index	Average age	Synthetic index	Average age	Synthetic index	Average age	Synthetic index	Average age	Synthetic index	Average age	Synthetic index	Average age	Synthetic index	Average age
2023/2024	1.17	33.4	1.27	32.9	1.09	33.4	1.25	33.6	0.59	32.5	0.42	34.2	0.16	34.6
2022/2023	1.15	33.3	1.21	32.9	1.10	33.4	1.20	33.3	0.59	32.4	0.41	34.2	0.15	34.5
2021/2022	1.20	33.4	1.32	33.0	1.14	33.5	1.24	33.4	0.60	32.4	0.44	34.3	0.16	34.5
2020/2021	1.19	33.1	1.26	32.8	1.12	33.2	1.27	33.2	0.60	32.2	0.44	34.1	0.15	34.2
2019/2020	1.24	33.0	1.30	32.7	1.18	33.1	1.32	33.0	0.63	32.0	0.45	34.0	0.16	34.2
2018/2019	1.26	32.9	1.34	32.5	1.20	33.1	1.33	33.0	0.64	31.8	0.47	34.0	0.15	34.2
2017/2018	1.28	32.9	1.42	32.5	1.21	33.1	1.34	32.9	0.65	31.9	0.48	34.0	0.15	33.9
2016/2017	1.33	33.0	1.46	32.6	1.27	33.0	1.37	33.0	0.68	31.9	0.51	34.0	0.14	34.2
2015/2016	1.37	32.8	1.48	32.5	1.29	33.0	1.44	32.7	0.72	31.7	0.51	34.0	0.14	33.9
2014/2015	1.34	32.7	1.49	32.5	1.27	32.8	1.40	32.7	0.72	31.7	0.49	33.9	0.13	34.1

Date December 29, 2025

Source: Eustat. Indicators for the analysis of demographic phenomena

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Synthetic fertility index of the Basque Country and average age of maternity by year, according to historical territory. 2015-2024

Operation :: Demographic indicators

Código operación :: 010121
Frequency :: Yearly
Timeframe :: 2015-2024
Last updated :: 12/29/2025
Next update :

Type of operation :: Síntesis
Available formats :
Licence :: Creative Commons
Permalink :: https://en.eustat.eus/elementos/tbl0021668_i.html
Metodologia :: Methodology file

Body responsible :: Euskal Estatistika Erakundea/Instituto Vasco de Estadística

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