Season 2014 ZDF , 2014 Season 2015 ZDF , 2015 Season 2016 ZDF , 2016 Season 2017 ZDF , 2017 Season 2018 ZDF , 2018 Season 2019 ZDF , 2019 Season 2020 ZDF , 2020 Season 2021 ZDF , 2021 Season 2022 ZDF , 2022 Season 2023 ZDF , 2023 Season 2024 ZDF , 2024