06-23-2025 Agenda Packet Cc - Regular Meeting

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City of Orono, Minnesota Required Supplementary Information (Continued) For the Year Ended December 31, 2024 Notes to the Required Supplementary Information - Police and Fire Fund Changes in Actuarial Assumptions 2024 - There were no changes in actuarial assumptions since the previous valuation. 2023 - The investment return assumption was changed from 6.5 percent to 7.0 percent. The single discount rate changed from 5.4 percent to 7.0 percent. 2022 - The mortality improvement scale was changed from Scale MP-2020 to Scale MP-2021. The single discount rate changed from 6.50 percent to 5.40 percent. 2021 - The investment return and single discount rates were changed from 7.5 percent to 6.5 percent, for financial reporting purposes. The inflation assumption was changed from 2.5 percent to 2.25 percent. The payroll growth assumption was changed from 3.25 percent to 3.0 percent. The base mortality table for healthy annuitants and employees was changed from the RP-2014 table to the Pub-2010 Public Safety Mortality table. The mortality improvement scale was changed from MP-2019 to MN-2020. The base mortality table for disabled annuitants was changed from the RP-2014 healthy annuitant mortality table (with future mortality improvement according to Scale MP-2019) to the Pub-2010 Public Safety disabled annuitant mortality table (with future mortality improvement according to Scale MP-2020). Assumed rates of salary increase were modified as recommended in the July 14, 2020 experience study. The overall impact is a decrease in gross salary increase rates. Assumed rates of retirement were changed as recommended in the July 14, 2020 experience study. The changes result in slightly more unreduced retirements and fewer assumed early retirements. Assumed rates of withdrawal were changed from select and ultimate rates to service-based rates. The changes result in more assumed terminations. Assumed rates of disability were increased for ages 25-44 and decreased for ages over 49. Overall, proposed rates result in more projected disabilities. Assumed percent married for active female members was changed from 60.0 percent to 70.0 percent. Minor changes to form of payment assumptions were applied. 2020 - The mortality projection scale was changed from MP-2018 to MP-2019. 2019 - The mortality projection scale was changed from MP-2017 to MP-2018. 2018 - The mortality projection scale was changed from MP-2016 to MP-2017. 2017 - Assumed salary increases were changed as recommended in the June 30, 2016 experience study. The net effect is proposed rates that average 0.34 percent lower than the previous rates. Assumed rates of retirement were changed, resulting in fewer retirements. The Combined Service Annuity (CSA) load was 30 percent for vested and non-vested deferred members. The CSA has been changed to 33 percent for vested members and 2 percent for non-vested members. The base mortality table for healthy annuitants was changed from the RP-2000 fully generational table to the RP-2014 fully generational table (with a base year of 2006), with male rates adjusted by a factor of 0.96. The mortality improvement scale was changed from Scale AA to Scale MP-2016. The base mortality table for disabled annuitants was changed from the RP- 2000 disabled mortality table to the mortality tables assumed for healthy retirees. Assumed termination rates were decreased to 3.0 percent for the first three years of service. Rates beyond the select period of three years were adjusted, resulting in more expected terminations overall. Assumed percentage of married female members was decreased from 65 percent to 60 percent. Assumed age difference was changed from separate assumptions for male members (wives assumed to be three years younger) and female members (husbands assumed to be four years older) to the assumption that males are two years older than females. The assumed percentage of female members electing joint and survivor annuities was increased. The assumed post-retirement benefit increase rate was changed from 1.0 percent for all years to 1.0 percent per year through 2064 and 2.5 percent thereafter. The single discount rate was changed from 5.6 percent to 7.5 percent. 2016 - The assumed post-retirement benefit increase rate was changed from 1.0 percent per year through 2037 and 2.5 percent per year thereafter to 1.0 percent per year for all future years. The assumed investment return was changed from 7.9 percent to 7.5 percent. The single discount rate was changed from 7.9 percent to 5.6 percent. The assumed future salary increases, payroll growth and inflation were decreased by 0.25 percent to 3.25 percent for payroll growth and 2.5 percent for inflation. 2015 - The assumed post-retirement benefit increase rate was changed from 1.0 percent per year through 2030 and 2.5 percent per year 90 117