Seasons
Season 1
2 episodes
2007
Season 2
4 episodes
2008
Season 3
3 episodes
2009
Season 4
3 episodes
2010
Season 5
3 episodes
2011
Season 6
7 episodes
2012
Season 7
6 episodes
2013
Season 8
7 episodes
2014
Season 9
6 episodes
2015
Season 10
6 episodes
2016
Season 11
4 episodes
2017
Season 12
6 episodes
2018
Season 13
6 episodes
2019
Season 14
5 episodes
2020
Season 15
5 episodes
2021
Season 16
6 episodes
2022
Season 17
6 episodes
2023
Season 18
6 episodes
2024
Season 19
6 episodes
2025