Open access status, observed in February 2021 for publications dated 2015 and 2019
| Open access status . | FR-2015 . | BSO 2015 . | FR-2019 . | BSO 2019 . |
|---|---|---|---|---|
| Gold | 12% | 13% | 18% | 18% |
| Hybrid | 12% | 12% | 9% | 10% |
| Bronze | 4% | 4% | 7% | 6% |
| Green | 18% | 16% | 20% | 20% |
| Closed | 55% | 54% | 46% | 46% |
| Open access status . | FR-2015 . | BSO 2015 . | FR-2019 . | BSO 2019 . |
|---|---|---|---|---|
| Gold | 12% | 13% | 18% | 18% |
| Hybrid | 12% | 12% | 9% | 10% |
| Bronze | 4% | 4% | 7% | 6% |
| Green | 18% | 16% | 20% | 20% |
| Closed | 55% | 54% | 46% | 46% |