I spent a few hours last week compiling some data on suicide and attempted suicide, and published the first few charts on my blog Friday. This is the next installment in this short series. Friday's data concerned the number of suicides and attempts. Today's charts concern the rate: the number of suicides and attempts divided by the population. These charts express the rate as the number of incidents per 100,000 population. Lincoln has grown by more than 60,000 over the 20 years covered by these data. The rate calculation allows a comparison over time that takes into account that population growth. Click each chart for a larger view.