impairment vs maladministration

impairment

noun
  • an inefficient part or factor. 

  • A deterioration or weakening 

  • The result of being impaired 

  • A downward revaluation, a write-down. 

  • A disability or handicap 

maladministration

noun
  • Faulty, inefficient or improper management or administration, especially by a government body. 

How often have the words impairment and maladministration occurred in a corpus of books? (source: Google Ngram Viewer )