I think that demographically we might be in a trough, of new born children. Also children born to the last major cohort (the children of the baby Boomers) are just becoming tweens and young teens, or very young adults. There might be a spike in crime, in the next 10 years, as they start to mature. It helps that they are more spread out, and not born in the same few years like the Boomers were, (a more flattened and spread curve).

Very rough midpoint years; Baby Boomers 1949, Gen X 1979, Millennial 2009.