council tax vs property tax

council tax

noun
  • The taxation paid towards the local government. 

property tax

noun
  • A tax, usually ad valorem, charged on the basis of the fair market value of property. The scope of taxable property varies by jurisdiction and it may include personal property in addition to real estate. 

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