Open Access statistics for GfK (United States), United States, covering academic research published from 2000 to 2025. Read More.
Open Access Percentage
50%
Total
Publications
1.1K
Total Open
Publications
535
Total
Citations
28K
Open Access
Percentage
50%
Total
Publications
1.1K
Total Open
Publications
535
Total
Citations
28K
Breakdown
Publisher Open
28%
Both
16%
Other Platform Open
5%
Closed
51%
Percentage of Open Access over time
Publisher Open
Both
Other Platform Open
Closed
Volume of Open Access over time
Open
Closed
Publisher Open
OA Journal 32%
152
Hybrid 23%
107
No Guarantees 45%
212
Other Platform Open
Institution 64%
146
Domain 51%
116
Other Internet 12%
27
Preprint 2%
5
Public 1%
2
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
PubMed Central | Domain | 118 |
doaj.org OAI-PMH Repository | Institution | 69 |
Unknown Repository | Other Internet | 17 |
DOI | Other Internet | 11 |
Istanbul University | Institution | 9 |
LA Referencia | Institution | 8 |
Europe PMC | Domain | 5 |
wur.nl OAI-PMH Repository | Institution | 3 |
RELX Group (Netherlands) | Institution | 3 |
Max Planck Society | Institution | 3 |
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