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| H1 2020 | H2 2020 | H1 2021 | H2 2021 | H1 2022 | H2 2022 | H1 2023 | |
| 1st quintile | 34.7 | 31.8 | 27.6 | 28.5 | 32 | 38 | 40.8 |
| 2nd quintile | 21.5 | 23.5 | 24 | 24.4 | 22.4 | 24.2 | 24.9 |
| 3rd quintile | 15.3 | 14.7 | 13.8 | 14.6 | 14.5 | 14.8 | 15.6 |
| 4th quintile | 11.6 | 11.7 | 11.6 | 11.7 | 11.7 | 12.7 | 13.4 |
| 5th quintile | 9 | 9 | 9.1 | 9.2 | 9 | 9.2 | 9.2 |
| All quintiles | 11.6 | 11.6 | 11.2 | 11.2 | 11 | 11.6 | 11.8 |