Hi @bucky,
Yes, you can read it here - https://storj.io/storj.pdf. The blog also has a lot of useful information - Storj Blog and in the documentation - https://docs.storj.io/concepts/overview.
The tokens can also be used to pay for storage usage as a customer, with the benefit of a 10% bonus - https://docs.storj.io/billing-payment-and-accounts-1/storj-token#using-storj-token
In short no. The last official figures were released in the Town Hall from Q4 2020 - What is the current usage space on storj total capacity? - #3 by Stob