Zero to Three

Zero to Three

Open Access statistics for Zero to Three, United States, covering academic research published from 2000 to 2025.

Open Access statistics for Zero to Three, United States, covering academic research published from 2000 to 2025. Read More.


Open Access Percentage

46%


Total
Publications

23K


Total Open
Publications

11K


Total
Citations

1.1M


Open Access
Percentage

46%


Total
Publications

23K


Total Open
Publications

11K


Total
Citations

1.1M

Website

download

Breakdown

20% 19% 7% 54%

Publisher Open

20%

Both

19%

Other Platform Open

7%

Closed

54%

Percentage of Open Access over time

0%10%20%30%40%50%60%70%80%90%100%
20002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025

Publisher Open

Both

Other Platform Open

Closed

Volume of Open Access over time

01002003004005006007008009001k1.1k1.2k1.3kTotal Publications
20002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025

Open

Closed

Publisher Open

31%OA Journal

OA Journal 31%

2.9K

Hybrid 17%

1.6K

No Guarantees 52%

4.8K

Other Platform Open

Domain 71%

4.4K

Institution 50%

3K

Other Internet 6%

382

Public 2%

122

Preprint 1%

53

Other Platform Locations

Name

Platform Type

Publications

PubMed Central
Domain
4.5K
doaj.org OAI-PMH Repository
Institution
1.2K
Unknown Repository
Other Internet
249
DOI
Other Internet
168
LA Referencia
Institution
130
Royal Netherlands Academy of Arts and Sciences
Institution
118
Europe PMC
Domain
114
Yonsei University
Institution
105
Le Centre pour la Communication Scientifique Directe - HAL - Diderot
Institution
104
Figshare
Public
80
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Data updated 12 August 2026

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