RMD and State Pension

I am 73 and receive a pension from the Arizona State Retirement System. TurboTax asks for RMD information for this account that simply does not exist due to the way this system is managed. I see a lot of threads from retired state employees regarding this issue with no definitive answers to these two, simple questions:

 

1. How do I answer if I withdrew RMDs?

2. If needed, how do I calculate the amount?

 

Nothing in your software answers this question, and I haven't found a definitive answer anywhere on your website.