| Closed Access | Embargo | Metadata Only Access | Open Access | Restricted | Unknown | Total | |
|---|---|---|---|---|---|---|---|
| Total | 30 | 48 | 524 | 1527 | 1058 | 56 | |
| 2026 | - | 1 | 36 | 32 | 11 | 1 | 81 |
| 2025 | 2 | 10 | 79 | 113 | 38 | 1 | 243 |
| 2024 | 5 | 27 | 27 | 246 | 137 | 2 | 444 |
| 2023 | 1 | 7 | 53 | 292 | 185 | 11 | 549 |
| 2022 | 2 | - | 56 | 238 | 180 | 5 | 481 |
| 2021 | 3 | 1 | 56 | 249 | 141 | 12 | 462 |
| 2020 | 9 | 2 | 104 | 212 | 189 | 8 | 524 |
| 2019 | 8 | - | 113 | 143 | 172 | 16 | 452 |
| not yet published | - | - | - | 2 | 5 | - | 7 |