
Open Access statistics for Office of the Director, United States, covering academic research published from 2000 to 2025.
Open Access statistics for Office of the Director, United States, covering academic research published from 2000 to 2025. Read More.
Open Access Percentage
66%
Total
Publications
8.9K
Total Open
Publications
5.9K
Total
Citations
567K
Open Access
Percentage
66%
Total
Publications
8.9K
Total Open
Publications
5.9K
Total
Citations
567K
Breakdown
Publisher Open
16%
Both
30%
Other Platform Open
20%
Closed
34%
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 39%
1.6K
Hybrid 22%
891
No Guarantees 39%
1.6K
Other Platform Open
Domain 86%
3.8K
Institution 31%
1.4K
Other Internet 6%
281
Preprint 5%
235
Public 2%
91
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
PubMed Central | Domain | 3.8K |
doaj.org OAI-PMH Repository | Institution | 727 |
DOI | Other Internet | 209 |
Unknown Repository | Other Internet | 131 |
bioRxiv | Preprint | 122 |
California Digital Library | Institution | 121 |
Royal Netherlands Academy of Arts and Sciences | Institution | 100 |
Europe PMC | Domain | 89 |
Figshare | Public | 75 |
National Institutes of Health | Institution | 62 |