translation.en: Now, this is, more or less, if you look at the average data of the countries -- Now that's dangerous, to use average data, because there is such a lot of difference within countries.
translation.zh: 这里大家看到各国的数据 基本上都是平均数 但是用平均数可能会很危险 因为国家内部也存在很大的差异