Translation of "1977" in Chinese

My father died three years ago, that is to say in 1977.

家父是在三年前離世的，也就是一九七七年。

- In America, the consumption of fast-food has tripled between 1977 and 1995.
- In the American continent, the consumption of fast-food has tripled between 1977 and 1995.

美國人快餐食物的消耗量在一九七七至一九九五年間大幅增長了三倍。