pork barrel vs tax

pork barrel

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

  • 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. 

tax

noun
  • A burdensome demand. 

  • A task exacted from one who is under control; a contribution or service, the rendering of which is imposed upon a subject. 

  • Money paid to the government other than for transaction-specific goods and services. 

verb
  • To impose and collect a tax from (a person or company). 

  • To impose and collect a tax on (something). 

  • To accuse. 

  • To make excessive demands on. 

  • To examine accounts in order to allow or disallow items. 

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