How many times is Krishna mentioned in SGGS?

Respected Bani Kaur Ji;

Thank you for asking this question. I am sure many others have very similar questions.
Remember the old saying don’t give them fish, teach them how to catch the fish.

So, I am going to give you a source where you can find out for yourself not only the word Krishna but any other word as well.

Please go to the site KhijGurbani.org and look for Gurbani Search tab on the top banner.
Then enter any word into the box and select match all words, in selection box on the next right. This way you can search any word you like. It will display each occurrence of the word with line of the Gurbani where it is used.

Hope this helps.