
Open Access statistics for American Systems (United States), United States, covering academic research published from 2000 to 2025.
Open Access statistics for American Systems (United States), United States, covering academic research published from 2000 to 2025. Read More.
Open Access Percentage
22%
Total
Publications
215
Total Open
Publications
48
Total
Citations
2.5K
Open Access
Percentage
22%
Total
Publications
215
Total Open
Publications
48
Total
Citations
2.5K
Breakdown
Publisher Open
12%
Both
5%
Other Platform Open
3%
Closed
80%
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 14%
5
Hybrid 47%
17
No Guarantees 39%
14
Other Platform Open
Institution 67%
12
Domain 33%
6
Other Internet 17%
3
Preprint 6%
1
Public 0%
0
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
PubMed Central | Domain | 6 |
Office of Scientific and Technical Information | Institution | 6 |
doaj.org OAI-PMH Repository | Institution | 5 |
Unknown Repository | Other Internet | 2 |
University of Michigan | Institution | 1 |
National Aeronautics and Space Administration | Institution | 1 |
kuleuven.be OAI-PMH Repository | Institution | 1 |
DOI | Other Internet | 1 |
bioRxiv | Preprint | 1 |