crofting vs planting

crofting

noun
  • The process of exposing linen to the sun, on the grass, in the process of bleaching. 

  • A form of land tenure and small-scale food production, unique to the Highlands and islands of Scotland, in which individual crofts are established on the better land while a large area of poor-quality hill ground is shared by all the crofters of the township for grazing. 

planting

noun
  • The act of setting a plant in the ground for growth. 

  • A plantation. 

  • A plant (or clipping) that has been freshly planted. 

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