Some handy numbers at this link.

Canada’s homicide rate at lowest level since 1966

Since the introduction of stricter gun laws in 1991, there has been a 65 per cent reduction in homicides by long guns, Statistics Canada data shows. The reduction in homicides involving any type of firearm was 37 per cent.

Statistics Canada released a report on Oct. 26, 2011, on homicides in Canada in 2010. That year, there were 170 shooting homicides, about 32 per cent of all homicides. The total homicide rate fell to its lowest level since 1966 (1.62 per 100,000 population).