translation.en: We see people in their twenties are the most prolific, followed by teenagers, and then people in their thirties, and it dies out very quickly from there.
translation.zh: 可以看到20多岁的人是最活跃的， 然后是青少年，然后是30多岁的人， 其他年龄段的就基本上不怎么讲了。