Ave # Parents	1.0	1.1	1.2
Max Parents	1	3	3
Note that the "Total CWE Entries" statistic only counts entries that have ParentOf/ChildOf relationships within the view.
It can be seen that the hierarchies in CWE-699 and CWE-1000 are deeper than the one in Seven Pernicious Kingdoms. This might be reasonable to expect, since CWE tracks many more weaknesses than 7PK does. The 7PK phyla are generally at CWE's Base or Variant level of abstraction. It should be noted that Fortify's [Vulncat] covers many more issues than the original 7PK paper.