population: 3
 minimum value: 2
 maximum value: 11
 total value: 16
 average value: 5.33
 distribution:
  <=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%)
 list:
  nit: 11 (68.75%)
  : 3 (18.75%)
  ini: 2 (12.50%)