period,core_margin
2020H1,22.6
2020H2,29.4
2021H1,25.8
2021H2,23.5
2022H1,15.0
2022H2,6.3
2023H1,17.4
2023H2,19.0
2024H1,24.8
2024H2,35.1
2025H1,41.8
2025H2,47.8
2026H1,41.4