FIV OBRADORS, year by year

Name: 2018–2023 series for FIV OBRADORS in the Spanish National ART Activity Registry
Creator: Registro Nacional de Actividad 2023-Registro SEF

Everything the Spanish National Activity Registry publishes about FIV OBRADORS between 2018 and 2023: 6 years with data. Each year carries its own attribution, because each year is a separate publication of the registry.

Volume first

Activity comes before results on purpose: a high percentage over few cycles does not mean what the same percentage over many cycles means. The registry publishes cycles as bands and that is how we show them, never reduced to a single figure; transfers are an exact count.

Transfers recorded per year — IVF/ICSI with own oocytes

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Transfers recorded per year — IVF/ICSI with own oocytes
Year	Value
2018	89
2019	89
2020	121
2021	147
2022	140
2023	120

Transfers recorded per year — Egg donation

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Transfers recorded per year — Egg donation
Year	Value
2018	34
2019	51
2020	60
2021	116
2022	195
2023	107

Results, year by year

Each band is the interval the registry published that year: the floor and the ceiling of the estimate, not a point. There is no line joining the years, and that is deliberate — joining the centres of successive intervals would assert a trend the data does not support.

IVF/ICSI with own oocytes · Under 35

Fresh embryos
Frozen embryos

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IVF/ICSI with own oocytes · Under 35
Year	Fresh embryos	Frozen embryos
2018	—	32 – 65.1%
2019	—	22.7 – 56.1%
2020	100 – 100%	35.6 – 62.5%
2021	13.3 – 100%	39.7 – 63.1%
2022	100 – 100%	35.5 – 57.1%
2023	—	55.7 – 78.7%

IVF/ICSI with own oocytes · Between 35 and 39

Fresh embryos
Frozen embryos

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IVF/ICSI with own oocytes · Between 35 and 39
Year	Fresh embryos	Frozen embryos
2018	—	11.9 – 39.3%
2019	—	15.8 – 44.2%
2020	—	22.1 – 50.6%
2021	0 – 100%	29.2 – 54.1%
2022	—	32.1 – 61.2%
2023	—	29.2 – 57.8%

IVF/ICSI with own oocytes · Over 40

Fresh embryos
Frozen embryos

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IVF/ICSI with own oocytes · Over 40
Year	Fresh embryos	Frozen embryos
2019	—	0 – 28.7%
2020	0 – 100%	0 – 28.7%
2021	—	0.5 – 49.5%
2022	—	7.9 – 64.8%
2023	—	0 – 71.1%

Egg donation · Under 35

Fresh embryos
Frozen embryos

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Egg donation · Under 35
Year	Fresh embryos	Frozen embryos
2019	100 – 100%	0 – 55.1%
2020	13.3 – 100%	100 – 100%
2021	1 – 99%	20.5 – 93.8%
2022	100 – 100%	26.7 – 80.9%
2023	—	0 – 82.9%

Egg donation · Between 35 and 39

Fresh embryos
Frozen embryos

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Egg donation · Between 35 and 39
Year	Fresh embryos	Frozen embryos
2019	—	15.4 – 84.6%
2020	0 – 86.7%	47.8 – 95.1%
2021	45 – 100%	18.6 – 52.3%
2022	100 – 100%	29.9 – 59%
2023	100 – 100%	23.5 – 59.3%

Egg donation · Over 40

Fresh embryos
Frozen embryos

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Egg donation · Over 40
Year	Fresh embryos	Frozen embryos
2018	—	10.4 – 45.6%
2019	0 – 86.7%	30.3 – 63.8%
2020	1 – 99%	33.2 – 66.8%
2021	35.1 – 88%	49.2 – 75.3%
2022	28.9 – 100%	37.5 – 54.7%
2023	53.5 – 100%	34.6 – 59.1%

AIH — artificial insemination (partner’s sperm) · Under 35

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AIH — artificial insemination (partner’s sperm) · Under 35
Year	Under 35
2019	0 – 46.5%

AIH — artificial insemination (partner’s sperm) · Between 35 and 39

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AIH — artificial insemination (partner’s sperm) · Between 35 and 39
Year	Between 35 and 39
2018	0 – 62%
2022	0 – 67.4%

AID — artificial insemination (donor sperm) · Under 35

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AID — artificial insemination (donor sperm) · Under 35
Year	Under 35
2018	0 – 100%
2019	0 – 86.7%
2020	0 – 31.6%
2021	0 – 30.6%
2022	0 – 30.6%
2023	0 – 67.4%

AID — artificial insemination (donor sperm) · Between 35 and 39

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AID — artificial insemination (donor sperm) · Between 35 and 39
Year	Between 35 and 39
2022	0 – 20.6%

Year-by-year table

The table is the exact and complete reading: everything in the charts, and more. Each row cites the wording the registry requires for that year.

Year	Name in the registry	Cycles started	Transfers	Pregnancy per transfer (under 35)	Pregnancy per cycle (insemination)	Attribution
2018	FIV OBRADORS	No data	123	No data	0 – 62%	Registro Nacional de Actividad 2018-Registro SEF
2019	FIV OBRADORS	No data	140	No data	0 – 46.5%	Registro Nacional de Actividad 2019-Registro SEF
2020	FIV OBRADORS	100-500	181	100 – 100%	0 – 31.6%	Registro Nacional de Actividad 2020-Registro SEF
2021	FIV OBRADORS	100-500	263	13.3 – 100%	0 – 30.6%	Registro Nacional de Actividad 2021-Registro SEF
2022	FIV OBRADORS	100-500	335	100 – 100%	0 – 67.4%	Registro Nacional de Actividad 2022-Registro SEF
2023	FIV OBRADORS	100-500	227	No data	0 – 67.4%	Registro Nacional de Actividad 2023-Registro SEF

Gaps in the series, and how to read them

The registry’s province-by-province census returns empty for 2009 and 2010, even though the individual profiles for those years do exist and have been recovered one by one. A centre missing from a given year means the registry publishes no profile for it that year — not that it closed.

The registry’s template changed schema in 2014 and again in 2015: up to 2013, cycles, implantation and transfers are published without separating fresh from frozen embryos, and insemination is published for a single age band (“under 40”). That is why some years carry fewer series than others: it is what the source published, not a missing figure.

And most important: a change from one year to the next is not, on its own, an improvement or a decline. The patient mix changes, selection criteria change and, at small volumes, chance changes too. Wide intervals are precisely the signal that the exact number cannot be trusted.

Official guide: how to interpret a centre’s data (PDF, in Spanish)

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Source: “Registro Nacional de Actividad 2023-Registro SEF” (Spanish National ART Activity Registry) — registrosef.com, retrieved 31 July 2026.