Report on the date a Performance Review has been closed on the system within Performance Queries

Often employees can open a performance review and the employee and manager update this over a period of time or can forget to close this promptly. Currently the reporting / query function in relation to Perfomance Reviews will only report on the date the review was opened in the system and not when it was closed. This leads to inaccuracy in data on the completion of the review. It would be much more helpful to have a date of when it was opened and closed in the system. Currently the reporting is not very useful to check when employees last had a performance review completed which is what as a company / manager you would want to know.