Season 1
8 episodes
February 19, 2005 - December 4, 2005
Season 2
9 episodes
February 1, 2006 - December 23, 2006
Season 3
8 episodes
January 1, 2007 - November 10, 2007
Season 4
11 episodes
January 1, 2008 - December 31, 2008
Season 5
8 episodes
March 14, 2009 - December 31, 2009
Season 6
8 episodes
March 8, 2010 - December 31, 2010
Season 7
7 episodes
March 12, 2011 - December 31, 2011
Season 8
6 episodes
March 31, 2012 - December 31, 2012
Season 9
9 episodes
March 8, 2013 - December 31, 2013
Season 10
10 episodes
April 12, 2014 - December 31, 2014
Season 11
8 episodes
March 7, 2015 - December 31, 2015
Season 12
11 episodes
March 19, 2016 - December 31, 2016
Season 13
11 episodes
March 25, 2017 - December 31, 2017
Season 14
9 episodes
March 17, 2018 - December 31, 2018
Season 15
11 episodes
March 16, 2019 - December 31, 2019
Season 16
12 episodes
March 28, 2020 - December 31, 2020
Season 17
10 episodes
April 17, 2021 - December 31, 2021
Season 18
6 episodes
August 23, 2022 - December 31, 2022
Season 19
9 episodes
March 11, 2023 - December 31, 2023
Season 20
11 episodes
March 17, 2024 - October 27, 2024