a bit vs kinda

a bit

adv
  • Slightly; rather. 

  • To a small extent; in a small amount. 

  • Very. 

  • A lot. 

kinda

adv
  • kind of; somewhat 

intj
  • Yes in some respects but no in other respects. 

noun
  • A subspecies of baboon, Papio cynocephalus kindae, primarily found in Angola, the Democratic Republic of the Congo, Zambia, and possibly western Tanzania. 

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