Gerry Horkan (Fianna Fail) | Oireachtas source

Every single death is a tragedy for the person's family, friends and all of the people connected to him or her There were nine fatalities in Dublin, which has a population of 1 million, and I presume that the figure of five fatalities in Wexford is based on a much smaller population. What metric is used to analyse the statistics? What counties are the worst when certain metrics are used?