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FAIR adoption & literature

Open-access articles (Europe PMC)

EMBL-EBI / Europe PMC

8.0M
records · 2026-07-20
Gompertz
best-fit model
9.9M
projected 2028
17K3.3M6.6M9.9M2005200920132017202120259.9M 2028
Gompertz (S-curve) fitbest fit (AICc)N(t) = L·e^{−e^{−k(t − t₀)}}
carrying capacity L 34Msteepness k 0.075 / yrinflection t₀ 2031 0.9981forecast 9.9M by 2028

Forecast = 10% of the 22-yr record (2.2 yr ahead). Anchored on the latest value; levels off toward L ≈ 34M.

Cumulative open-access article records in Europe PMC. Historical points are the running sum of OA articles by publication year (which approaches the all-time total); the latest point is the live OPEN_ACCESS:y total.

SourceEMBL-EBI / Europe PMC
Update cadenceweekly
Live endpointhttps://www.ebi.ac.uk/europepmc/webservices/rest/search?query=OPEN_ACCESS:y&format=json&pageSize=1&resultType=idlist
Parsejson · hitCount
Daterecords
2026-07-208,024,204
2026-07-138,023,599
2026-07-068,023,278
2026-06-247,995,922
2025-01-017,194,301
2024-01-016,280,387
2023-01-015,519,088
2022-01-014,751,994
2021-01-013,900,183
2020-01-013,145,349
2019-01-012,544,028
2018-01-012,129,160
2017-01-011,773,283
2016-01-011,458,078
2015-01-011,181,896
2014-01-01929,580
2013-01-01705,677
2012-01-01519,095
2011-01-01368,584
2010-01-01257,672
2009-01-01175,967
2008-01-01115,466
2007-01-0170,346
2006-01-0141,433
2005-01-0117,352

Machine-readable: /api/research-data?metric=europepmc-oa · back to all metrics

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