The much bigger question here is why did the rate of suicide increase more than 30% for the entire nation in a 16 year time span? It's a fairly consistent trend across all sorts of economic environments regardless of whether we were in a boom or bust.
It's a shame there isn't a deeper analysis here. I have so many questions. Is the cause related to drug abuse? Would better healthcare help here? Is it mostly economical? Is the trend consistent across similar nations? Or could there be a link to something we mass consume and don't realize is harming us (similar to just a few decades ago when everything had lead in it).