按人口比例來說，美國出國旅遊的人數是中國的一倍

https://thepointsguy.com/2017/01/record-number-of-americans-traveled-abroad-2016/

In 2016, a total of 66,960,943 U.S. citizens traveled outside the country, compared to the 61,783,913 who did the previous year.

 

中國的出境人數大概是上麵的數字的一倍，但中國人口是美國的四倍多。