Seasons
1987
1 episodes
1996
Season 2
2 episodes
1999
Season 3
1 episodes
2002
Season 4
1 episodes
2003
Season 5
3 episodes
2005
Season 6
7 episodes
2006
Season 7
6 episodes
2007
Season 8
19 episodes
2008
Season 9
15 episodes
2009
Season 10
21 episodes
2010
Season 11
21 episodes
2011
Season 12
2 episodes
2012
Season 13
2 episodes
2013
Season 14
5 episodes
2014
Season 15
4 episodes
2015
Season 16
4 episodes
2016
Season 17
2 episodes
2018
Season 18
3 episodes
2019