Gory Prince George's: Comparative statistics

Some comparative statistics for the seven plus years I've been tracking Prince George's County homicides: 

• Bloodiest May: 2005-18, also tied for worst month overall
• The current 2011 body count (52) is about average through May. January through  May:
• 2010-36; 
• 2009-42; 
• 2008-57; 
• 2007-66; 
• 2006-47; 
• 2005-73; 
• 2004-52; 
• Average-53
• Monthly averages by year (rounded): 
• 2011-10; 
• 2010- 8; 
• 2009- 8; 
• 2008-11; 
• 2007-12; 
• 2006-11; 
• 2005-14; 
• 2004-12; 
• Seven plus year average-11
• The 2 least bloody years since January 2004 were 2009 and 2010 under former police chief Roberto Hylton, who was fired in December 2010 by incoming County Executive Rushern Baker