2017 20 successions, 14 on the Roll (70%)
2018 14 successions, 10 on the Roll (71%)
2019 12 successions, 6 on the Roll (50%)
2020 18 successions, 13 on the Roll (72%)
2021 16 successions, 9 on the Roll (56%)
2022 20 successions, 15 on the Roll (75%)
2023 28 successions, 19 on the Roll (68%)
2024 20 successions, 11 on the Roll (55%)
2025 18 succession, 4 on the Roll (22%)
Of the additional recognised successions there were 1 from 2021, 1 from 2022, 2 from 2023, 3 from 2024 and 4 from 2025
Ignoring 2025 the average recognised successions for these years is 63% or just under 2/3rds