- <=2: sub-population=1 (33.33%); cumulated value=2 (12.50%)
- <=4: sub-population=1 (33.33%); cumulated value=3 (18.75%)
- <=16: sub-population=1 (33.33%); cumulated value=11 (68.75%)
+ <=2: sub-population=1 (33.33%); cumulated value=2 (9.09%)
+ <=8: sub-population=1 (33.33%); cumulated value=8 (36.36%)
+ <=16: sub-population=1 (33.33%); cumulated value=12 (54.54%)