Shootall, you asked how the EU came up with that. They did so by looking at all crimes of violence. This included forced home invasions, muggings, robbery, murder etc.
Just type in "violent crime per 100,000 in UK". You will get several sites. The british newspaper the Daily Mail reported that Britain has 2,034 violent crimes per 100,000 population, South Africa 1,605, Canada 935 and the USA 466. For all the trumpeting about crime in the USA, Canada has twice the violent crime as the USA.