3 sentences

1. 这里的游客人数逐年增加。

   zhè​lǐ de yóu​kè rén​shù zhú​nián zēng​jiā.

   The number of tourists here increases year by year.

   Source: Dong Chinese Dictionary

2. 该国的生育率正在逐年下降。

   gāi guó de shēng​yù lǜ zhèng​zài zhú​nián xià​jiàng.

   The country's birth rate is declining year by year.

   Source: Dong Chinese Dictionary

3. 城市里的外来人口逐年增加。

   chéng​shì lǐ de wài​lái rén​kǒu zhú​nián zēng​jiā.

   The migrant population in the city is increasing year by year.

   Source: Dong Chinese Dictionary