They're not the largest number of people, but they are some of the most expensive -- and in terms of the likelihood for domestic abuse, drug and alcohol abuse, poor performance by their kids in schools and also poor health as a result of stress.
人数が多い訳ではありませんが 最もお金がかかる人々ですし 家庭内暴力や薬物 アルコール中毒 子どもの学力不足やストレスから来る 健康障害などにも陥りやすいのです