The graph below shows the area of land from which grain was harvested 急问

grain was harvested from 【which=the area of land 】
是定语从句这里的 from which =where吗 where应该可以做从句的状语吧是的Theft , of which there are 94 cases per 1000 people 这里的of which 是指什么呢，做了什么成分 麻烦再帮忙解答一下there are 94 cases per 1000 people of 【which=theft】也是定语从句。是介词+关系代词类型的 。因为没有上下文，不清楚of具体意思整句话是Theft , of which there are 94 cases per 1000 people ，is slightly more common than violencethere are 94 cases of【 which=theft】per 1000 people 每1000人中有94个偷盗案例。不要追问了，在问我就没分了。有问题，发信息。