Single Sign-on completion data

Are there benchmarks available on how SSO should be performing? We are tracking how many new users start the SSO process but do no complete it. The weekly numbers jumps around and is not as high as we expected. I want to understand is this typical competition rate for SSO or is this a problem we have specifically.

The key things I want to understand:
*What are the average completion rates for new users for B2B/Saas providers ?

  • Do these rates vary from a lot provider to provider?