연구 지역에서 밀은 1980년대 초·중반에 가장 많이 생산되었으며, 1980년대 중·후반에 들어서면서 거의 생산되지 않았다.
In the study area, wheat had been produced probably the most during the early and mid 1980s, and very little wheat ended up being manufactured in the middle and late 1980s.