@zhang_yueting @sammy4723 @xuchuanmei @watinthe_ @lukeliao1 SA demographics drop off dramatically after age 35.
@zhang\u yueting@sammy4723@xuchuanmei@watinthe\u@lukeliao1 SA 35岁后人口统计学显著下降。
@zhang_yueting @sammy4723 @xuchuanmei @watinthe_ @lukeliao1 SA demographics drop off dramatically after age 35.
@zhang\u yueting@sammy4723@xuchuanmei@watinthe\u@lukeliao1 SA 35岁后人口统计学显著下降。