All Available Season All Season Season 1 May, 2006 4 episodes 7.5 Season 2 Sep, 2007 8 episodes 8.1 Season 3 Nov, 2008 10 episodes 7.9 Season 4 Sep, 2009 14 episodes 8.0 Season 5 Mar, 2011 14 episodes 7.8 Season 6 Apr, 2012 10 episodes 7.6 Season 7 Feb, 2013 16 episodes 8.2 Season 8 Feb, 2014 12 episodes 8.0 Season 9 Feb, 2015 12 episodes 7.8 Season 10 Jan, 2016 13 episodes 7.7 Season 11 Jan, 2017 14 episodes 7.9 Season 12 Mar, 2018 14 episodes 8.1 Season 13 Mar, 2019 14 episodes 8.0 Season 14 Mar, 2020 8 episodes 8.3 Season 15 Apr, 2022 2 episodes 8.5 Season 16 Feb, 2024 2 episodes 8.5 Season 17 Sep, 2024 2 episodes 8.0
