Grades 1,0 and 1,3                  Very Good

Grades 1,7 and 2,0 and 2,3     Good

Grades 2,7 and 3,0 and 3,3     Satisfactory

Grades 3,7 and 4,0                  Sufficient

Grades 4,3 and 4,7 and 5,0     Insufficient