Before 2008, the average oil production rate of newly cultivated soybean varieties in China was still lower than that of soybeans originating in a certain country  However, from March 2008 to April 2010, after careful cultivation by scientific and technological personnel, the average oil production rate has increased a lot
The average oil production rate of soybeans imported before 2008 is higher than that imported after April 2010.
 So far, although the average oil production rate has not increased, the gap with the average oil production rate of soybeans imported from a certain country is narrowing