In this video, I have explained how to come up with appropriate imputations when imputing missing values. In Stata, we use the "how_many_impuatations" command to calculate the appropriate imputations that don't change the standard error too much. Using how_many_imputations I needed 21 more imputations, then I added it to pilot imputations(18) to make a total of 39 imputations.