funds vs pork barrel

funds

noun
  • Financial resources. 

  • Permanent debts due by a government and paying interest. 

pork barrel

noun
  • State funds as assigned for local or regional expenditure; especially, central money used for regional projects which are eyecatching or designed to appeal to voters. 

  • A ready supply of income; one's livelihood. 

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