Season 1
23 episodes
October 6, 2000 - May 17, 2001
Season 2
23 episodes
September 27, 2001 - May 16, 2002
Season 3
23 episodes
September 26, 2002 - May 15, 2003
Season 4
23 episodes
September 25, 2003 - May 20, 2004
Season 5
25 episodes
September 23, 2004 - May 19, 2005
Season 6
24 episodes
September 22, 2005 - May 18, 2006
Season 7
24 episodes
September 21, 2006 - May 17, 2007
Season 8
17 episodes
September 27, 2007 - May 15, 2008
Season 9
24 episodes
October 9, 2008 - May 14, 2009
Season 10
23 episodes
September 24, 2009 - May 20, 2010
Season 11
22 episodes
September 23, 2010 - May 12, 2011
Season 12
22 episodes
September 21, 2011 - May 9, 2012
Season 13
22 episodes
September 26, 2012 - May 15, 2013
Season 14
22 episodes
September 25, 2013 - May 7, 2014
Season 15
18 episodes
September 28, 2014 - February 15, 2015
Season 16
2 episodes
September 27, 2015
