chaparral vs outback

chaparral

noun
  • A region of shrubs, typically dry in the summer and rainy in the winter. The coast of the Mediterranean is such a region. 

  • The foliage of creosote bush, Larrea divaricata, when used as a medicinal herb. 

outback

noun
  • The most remote and desolate areas of Australia; the desert and areas too arid for growing crops. 

adj
  • Characteristic of the most remote and desolate areas of Australia; very remote from urban areas. 

adv
  • To or towards the most remote and desolate areas of Australia. 

verb
  • To travel or stay in the outback 

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