insobriety vs potomania

insobriety

noun
  • The state of being drunk; a lack of sobriety. 

potomania

noun
  • An excessive and persistent desire to drink alcoholic beverages. 

  • A hypoosmolality disease caused by excessive beer drinking. 

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