#1 reason is probably aging population. Young people, in particular young men, commit more crimes. A nice animation (though this is England/Wales): http://www

#1 reason is probably aging population. Young people, in particular young men, commit more crimes. A nice animation (though this is England/Wales): http://www.bbc.com/news/uk-18854073 http://www.bbc.com/news/uk-18854073