Definition:
Unit: ⸤⸥; Codes: ⸤1= [very shallow], 2= [22.22% of very deep], 3= [shallow], 4= [44.44% of very deep], 5= [medium], 6= [66.67% of very deep], 7= [deep], 8= [88.89% of very deep], 9= [very deep]⸥; Scale: ⸤1 to 9⸥; Standard: ⸤⸥; Description: ⸤⸥
Comment:
Scale: 1=(very shallow), 3=(shallow), 5=(medium), 7=(deep), 9=(very deep)