"Sample.id" "Depth" "Sample" "Count"
"no1" "shallow" "s1" 12
"no1" "shallow" "s1" 14
"no2" "shallow" "s2" 10
"no2" "shallow" "s2"  7
"no3" "medium" "s1" 16
"no3" "medium" "s1" 12
"no4" "medium" "s2" 10
"no4" "medium" "s2" 19
"no5" "deep" "s1" 21
"no5" "deep" "s1" 29
"no6" "deep" "s2" 33
"no6" "deep" "s2" 30