Season 1 ZDF , 2009 Season 2 ZDF , 2010 Season 3 ZDF , 2010 Season 4 ZDF , 2011 Season 5 ZDF , 2011 Season 6 ZDF , 2012 Season 7 ZDF , 2012 Season 8 ZDF , 2013 Season 9 ZDF , 2013 Season 10 ZDF , 2014 Season 11 ZDF , 2014 Season 12 ZDF , 2015 Season 13 ZDF , 2015 Season 14 ZDF , 2016 Season 15 ZDF , 2016 Season 16 ZDF , 2017 Season 17 ZDF , 2017 Season 18 ZDF , 2018 Season 19 ZDF , 2018 Season 20 ZDF , 2019 Season 21 ZDF , 2019 Season 22 ZDF , 2020 Season 23 ZDF , 2020 Season 24 ZDF , 2021 Season 25 ZDF , 2021 Season 26 ZDF , 2022 Season 27 ZDF , 2022 Season 28 ZDF , 2023 Season 29 ZDF , 2023 Season 30 ZDF , 2024
, 2009