period,core_margin
2020H1,22.6
2020H2,27.2
2021H1,25.8
2021H2,24.4
2022H1,15.0
2022H2,10.8
2023H1,17.4
2023H2,18.3
2024H1,24.8
2024H2,31.5
2025H1,41.8
2025H2,45.6
2026H1,41.4