Haven't found Data on Netrider for SA yet. Found this after a search. http://www.dpti.sa.gov.au/__data/assets/pdf_file/0006/85398/Motorcycles_-_Road_Crash_Fact_Sheet.pdf From page One "The incidence of motorcycle death and serious injury has increased in South Australia as a proportion of all road deaths, while other road user trauma has generally decreased. Figure 1 shows the number of motorcycle riders and pillion passengers killed or seriously injured on South Australian roads each year since 2002. It also shows the number of motorcyclists killed or seriously injured as a proportion of all serious road casualties. Each year motorcyclists have become a larger part of road serious casualties increasing from 11% in 2002 of all serious casualties to 17% in 2011." Strangely the graph shows 218 in 2006 and 173 in 2011 which is a downward trend. From page seven: "SA comparison to other States and Territories In 2011, motorcycle riders and pillion passengers accounted for 20% of all road fatalities in South Australia, up on the previous five-year average of 14%. This compares with other states such as Victoria 17%, NSW 14%, Queensland 17% Western Australia 16% in 2011. South Australia’s rider fatality rate for 2011 was the highest amongst all jurisdictions."