人口多少用英語怎么表達

　　Nigeria has a population of nearly 100 million.

　　尼日利亞有近1億人口。

　　Population growth is decreasing by 1.4% each year.

　　人口增長每年下降1.4%。

　　For a small state it has a large urban population.

　　作為一個小州，其城市人口算是很多了。