| Closed Access | Embargo | Metadata Only Access | Open Access | Restricted | Unknown | Total | |
|---|---|---|---|---|---|---|---|
| Total | 32 | 44 | 466 | 1443 | 1038 | 56 | |
| 2026 | - | - | 5 | 5 | 1 | - | 11 |
| 2025 | 3 | 8 | 63 | 76 | 27 | 1 | 178 |
| 2024 | 5 | 26 | 23 | 239 | 139 | 2 | 434 |
| 2023 | 1 | 7 | 53 | 290 | 183 | 12 | 546 |
| 2022 | 2 | - | 50 | 233 | 181 | 6 | 472 |
| 2021 | 3 | 1 | 54 | 246 | 144 | 11 | 459 |
| 2020 | 9 | 2 | 104 | 210 | 190 | 8 | 523 |
| 2019 | 9 | - | 114 | 142 | 169 | 16 | 450 |
| not yet published | - | - | - | 2 | 4 | - | 6 |