#group: free  frags first [ 2^0   2^1   2^2   2^3   2^4   2^5   2^6   2^7   2^8   2^9   2^10  2^11  2^12  2^13  ]
#0    : 19424 34    560   [ 16    14    11    7     13    8     6     8     8     4     5     4     0     0     ]
#1    : 17851 10    554   [ 3     8     4     5     7     6     3     3     4     1     3     4     1     0     ]
#2    : 16831 17    490   [ 3     6     8     8     9     4     3     3     6     2     3     3     1     0     ]
#3    : 8386  32    552   [ 6     8     9     7     19    13    8     11    8     1     3     0     0     0     ]
#4    : 1584  19    497   [ 10    11    6     7     6     3     6     1     1     1     0     0     0     0     ]
#5    : 20300 15    559   [ 6     9     1     2     4     3     4     1     3     3     1     0     0     2     ]
#6    : 32275 1     493   [ 1     1     0     0     1     0     0     0     0     1     1     1     1     3     ]
#7    : 19928 1     552   [ 0     0     0     1     1     0     1     1     1     0     1     1     2     1     ]