1099-R form from Ohio Public Employees - how to report Turbo Tax 16 question re: State Distribution Amount

From prior answers on this site, it appears that the 1099R form from the Ohio Public Employees Retirement System is outdated as it contains no boxes numbered past 13, but the partial workaround is as follows:

 

Use Ohio 1099R Box 12 (state tax withheld) to complete Turbo Tax Box 14

Use Ohio 1099R Box 13 ( state ID number) to complete TT box 15

 

But, my question is how to complete the Turbo Tax question for  box 16, which requests the State Distribution Amount, given the fact that the OH form does not provide this info? 

 

Thanks for any help!