| Closed Access | Embargo | Metadata Only Access | Open Access | Restricted | Unknown | Total | |
|---|---|---|---|---|---|---|---|
| Total | 32 | 44 | 468 | 1437 | 1038 | 49 | |
| 2026 | - | - | 5 | 1 | 1 | - | 7 |
| 2025 | 3 | 8 | 62 | 75 | 27 | 1 | 176 |
| 2024 | 5 | 26 | 23 | 235 | 139 | 2 | 430 |
| 2023 | 1 | 7 | 54 | 289 | 183 | 10 | 544 |
| 2022 | 2 | - | 51 | 235 | 180 | 4 | 472 |
| 2021 | 3 | 1 | 55 | 246 | 144 | 10 | 459 |
| 2020 | 9 | 2 | 103 | 212 | 190 | 8 | 524 |
| 2019 | 9 | - | 115 | 142 | 170 | 14 | 450 |
| not yet published | - | - | - | 2 | 4 | - | 6 |