| Total number of unpaid blood donations (n) | Reactivity number of primary screening (%) | The number of confirmed positive (%) |
2015 | 34,432 | 31 (0.090) | 11 (0.032) |
2016 | 34,595 | 31 (0.090) | 11* (0.032) |
2017 | 36,749 | 23 (0.063) | 8 (0.022) |
2018 | 38,760 | 16 (0.041) | 6 (0.015) |
2019 | 44,058 | 14 (0.032) | 5 (0.011) |
2020 | 44,648 | 17 (0.038) | 10 (0.022) |
Total | 233,242 | 132 (0.057) | 51 (0.022) |