2 events in 2024 | 17 events in 2023 | 30 events in 2022 | 19 events in 2021 | 18 events in 2020 | 20 events in 2019 | 20 events in 2018 | 28 events in 2017 | 23 events in 2016 | 13 events in 2015 | 1 event in 2014