Danger! HGVs

Why isn't there a statistic showing journeys/km/hours against the thing that did the killing? We have a very unscientific percentage gained from a very small sample of cyclists died in london of which over 60% were killed by HGVs, but I'd like to see a table of all road deaths and what the other object to kill them was? I'm aware of one individual in the last year killed by a cyclist... might be two... and at least 10 killed by HGV... how many by cars, stationary objects, pedestrians... do you think that would be a stupid statistic?

I don't think it would be a stupid statistic but I suspect that classifying fatalities by what they collided into (if they collided into anything) might be a bit arbitrary. If someone has a fatal collision because they hit a stationary object the interesting further question is why did they hit that object? And the answer may involve some nearby, non-stationary object that they were swerving to avoid, which would be the cause of the collision, and the interesting 'statistic' for policymakers, but a collision with a wall is a collision with a wall, whatever causes it, and that is the statistic that would have to be recorded.