months vs defects
defects
  300000 ++---------+----------+----------+-----------+----------+---------++
         +          +          +          +         "data/md.sorted"   A    +
         |                                                                  |
  250000 ++          A                                                     ++
         |                  A                                               |
         |                   A                                              |
  200000 ++            A        A                                          ++
         |             A             A                                      |
         |          A  A  A    A                                      A     |
  150000 ++         A A A     A A                                          ++
         |          A   A  A   A  A                                         |
         |         A  A    A A        A  A                                  |
  100000 ++       A A AAAA  A  AA    A    A A     A    A                   ++
         |       AAA AAA A AA   AA A           A  A                A        |
         |      AAAAAAAAAA AA AA A AAA   AA A                               |
   50000 ++    AA AAAAAAAAAAAAAAAAAAA A  AA  A   AA        A     A         ++
         |    AAAAAAAAAAAAAAAAAAAAAAAAAAA    AAA                            |
         +    AAAAAAAAAAAAAAAAAAAAAAAA  AAAA      A   +          +          +
       0 ++AAAAAAAAAAAAAAAAAAAAA-AAAAA-A--+----A------+----------+---------++
         0          50        100        150         200        250        300
                                       months