Joanna vs Johanna

Joanna

name

  • A female given name from Latin [in turn from Hebrew]. 

  • One of the women following Jesus. 

Johanna

name

  • A female given name from Latin. 

  • The Comoros island of Anjouan. 

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