achieving vs deficiency

achieving

noun
  • Achievements, emphasizing the process of accomplishing them. 

deficiency

noun
  • Inadequacy or incompleteness. 

  • An insufficiency, especially of something essential to health. 

  • The codimension of a linear system in the corresponding complete linear system. 

  • The amount by which the number of double points on a curve is short of the maximum for curves of the same degree. 

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