Only 21 convictions out of 161 gun murders in past 10 years
No one was jailed for gun-related deaths in 2007 or 2008, and convictions have fallen from a high of five in 2004 to two in both 2005 and 2006.
The highest number of gun murders was in 2006, at 26, while the year with the least number was 1998, with just four.