In a corporate environment, a records management team is tasked with developing a retention schedule for various types of documents. The team must consider legal, regulatory, and operational requirements. If a specific document type, such as employee performance reviews, is required to be retained for a minimum of 5 years due to labor laws, and the organization has a policy of retaining documents for an additional 2 years for operational purposes, what is the total retention period for these documents? Additionally, if the organization decides to conduct a review of its records management policies every 3 years, how many times will the review occur during the total retention period?