面白い英文見つけた

At present, the population is increasing at a rate of around 1,000 people a day with birth rates in Britain far outnumbering those of the other five biggest EU countries: Germany, France, Italy, Spain and Poland.

those of the other five biggest countries. . .のthoseとは勿論、birth ratesを指す。thoseの後の前置詞は必ずofになるようだ。比較の対照として、その前のbirth rates in Britainのbirth ratesの後の助詞はinだ。