indebtedness vs outstanding payment(s)

indebtedness

noun
  • All debts totalled. 

  • The amount owed. 

  • State of owing money; being in debt. 

  • The state of owing something or being under obligation to someone. 

outstanding payment(s)

How often have the words indebtedness and outstanding payment(s) occurred in a corpus of books? (source: Google Ngram Viewer )