2 sentences

1. 这十年来，该城市的生产总值翻了两番。

   zhè shí nián lái, gāi chéng​shì de shēng​chǎn zǒng​zhí fān le liǎng fān.

   Over the past ten years, the city's GDP has quadrupled.

   Source: Dong Chinese Dictionary

2. 去年中国的国内生产总值增长了百分之五。

   qù​nián Zhōng​guó de guó​nèi​shēng​chǎn​zǒng​zhí zēng​zhǎng le bǎi​fēn​zhī​wǔ.

   Last year, China's GDP grew by five percent.

   Source: Dong Chinese Dictionary