最近さいきん
recently; lately; these days; nowadays
携帯電話けいたいでんわ
mobile telephone; cellular telephone
スマートホン
smartphone
調査ちょうさ
investigation; examination; inquiry; enquiry; survey
小学生しょうがくせい
elementary school student; primary school student
パーセント（％）
percent
中学生ちゅうがくせい
junior high school student; middle school pupil
専用せんよう
(one's) exclusive use; private use; personal use
タブレット
tablet; tablet computer
大人おとな
adult
ブランド
brand
見かける
to (happen to) see; to notice; to catch sight of
これら
these
かかる(お金がかかる)
to take (a resource, e.g. time or money)
高価なこうかな
highly priced; expensive; valuable; costly
親おや
parent; parents; mother and father
数かず
several; a number of
年々ねんねん
year by year; annually; every year; from year to year
減るへる
to decrease (in size or number); to diminish; to abate
王様おうさま
king