| Closed Access | Embargo | Metadata Only Access | Open Access | Restricted | Unknown | Total | |
|---|---|---|---|---|---|---|---|
| Total | 32 | 45 | 474 | 1448 | 1041 | 49 | |
| 2026 | - | - | 6 | 5 | 1 | - | 12 |
| 2025 | 3 | 9 | 65 | 76 | 27 | 1 | 181 |
| 2024 | 5 | 26 | 24 | 239 | 139 | 2 | 435 |
| 2023 | 1 | 7 | 53 | 291 | 184 | 10 | 546 |
| 2022 | 2 | - | 52 | 235 | 182 | 4 | 475 |
| 2021 | 3 | 1 | 55 | 246 | 144 | 10 | 459 |
| 2020 | 9 | 2 | 104 | 212 | 190 | 8 | 525 |
| 2019 | 9 | - | 115 | 142 | 170 | 14 | 450 |
| not yet published | - | - | - | 2 | 4 | - | 6 |