immaculate vs neat as a button

immaculate

adj
  • absolutely tidy, having no blemish or stain. 

  • (botany) Lacking blotches, spots, or other markings. 

  • containing no mistakes. 

  • morally pure, free from sin. 

neat as a button

adj
  • Very neat. 

How often have the words immaculate and neat as a button occurred in a corpus of books? (source: Google Ngram Viewer )