goods and services tax vs property tax

goods and services tax

noun
  • A tax very similar to the value added tax, levied, for example, in Australia, Canada, New Zealand, and Singapore. 

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 goods and services tax and property tax occurred in a corpus of books? (source: Google Ngram Viewer )