Consistent with the directive of earning the actuarial assumed rate of return, as established by the respective pension benefit boards, the State Budget Director, and applicable statutes, along with directives issued by the State of Michigan Investment Board to meet or exceed the actuarial assumption and peer target returns over the long term, the Bureau of Investments strives to meet these objectives across industry-accepted time periods reporting the quarterly rolling 3 and 7 year average returns for the Michigan Public Schools Employees’ Retirement System (MPSERS), the largest component plan of the State of Michigan Retirement System. This metric measures the MPSERS Quarterly rolling 3 year average, actual investment rate of return on pension fund assets for the Michigan Public School Employees' Retirement System vs. Peer Target Rate. Provides comparable medium term investment return and performance data relative to similarly sized and situated public pension plans in the US.