on January 1 a women deposits $5000 in a credit

Question: on January 1 a women deposits $5000 in a credit

On January 1, a woman deposits $5000 in a credit union that pays 12% nominal annual interest, compounded quarterly. She wishes to withdraw all the money in 5 equal yearly sums, beginning December 31 of the first year. What is the effective interest rate? (Answer format:  x.xxx, do not put in percentage)