Truck Crash Facts contains the 2017 summary of truck crash data including graphs and tables.
Because of their large mass, trucks tend to be over-represented in serious crashes. In recent years deaths from crashes involving trucks have made up around 17 to 23 percent of the total road toll, while only about 6 percent of the total distance travelled on NZ roads is travelled by trucks.
In crashes involving trucks most of the deaths are not truck occupants, but rather the other road users involved. This reflects the fact that in a collision between a heavy vehicle and a light vehicle or vulnerable road user there is a much higher probability of death or serious injury than in a collision involving only light vehicles.