That statistic is meaningless if you don't compare it to the absolute rate for other causes of death. In the US, suicide is the second-leading cause of death* of people aged 15-34, and very high on the list for ages 10-15 and 35-54 (source: http://www.cdc.gov/nchs/data/nvsr/nvsr65/nvsr65_02.pdf, pages 18-19). "A signal of our society crumbling before our eyes", maybe not, but if the second-leading cause of death in a large age group was a bacterial disease, and it has increased by a double-digit percentage in the last decade, people would be calling that a public health emergency.
* Accidents being #1. And since accidents are, well, accidents, suicide is arguably the leading cause of death that we can meaningfully do something about.
I think it is at least instructive to look at the rate; I live in a town of roughly 10,000 people. The rate translates into ~1 person here committing suicide in a year. I don't want anyone to kill themselves, but it isn't a shocking number when put in those terms.
The US uses this definition for suicide. http://www.cdc.gov/ViolencePrevention/suicide/definitions.ht...
> Suicide
> Death caused by self-directed injurious behavior with an intent to die as a result of the behavior.
That "intent to die" part makes it hard to decide whether something was suicide or accidental death, and we know it causes some incorrect classification.