2022 2021 2020 2019 2018
Proportion of the net OPEB liability $ 3,674 4,350 $ 5,053 $ 5,626 $ 5,880
State's proportionate share of the net OPEB liability 1,627 1,918 2,198 2,700 2,630
Total $ 5,301 6,268 $ 7,251 $ 8,326 $ 8,510
Proportionate share of the net OPEB liability 0.17% 0.17% 0.30% 0.16% 0.16%
Covered payroll $ 13,060 $ 12,222 $ 11,429 $ 10,894 $ 11,832
Proportionate share of net OPEB liability as a share of its covered employee payroll 28.13% 35.59% 44.21% 51.64% 49.70%
Plan fiduciary net position as a percentage of total OPEB liability 51.74% 39.05% 32.58% 25.50% 21.18%
Note: This table represents data that is one year in arrears.
Changes in assumptions: for fiscal year 2022, the discount rate used to measure the present value of the net OPEB liability was to 7.10% from 8.00%. The expectation of mortality was changed to the Pub2010 Mortality Tables (Teachers Benefit-Weighted) adjustments for each of the groups: service retirees, contingent annuitants, disabled retires, and actives. The assumed long-term investment rate of return was changed from 8.00% for the HealthTrust and 7.5% for the Life Trust to 7.10%. The price inflation assumption changed from 3.00% to 2.50%. The rates of member participation and spousal participation were adjusted to reflect actual experience more closely. For fiscal year 2020, the healthcare cost trend rate decreased from 7.75% and 5.75% to 7.50% and 5.50% for Pre-65 and Post-65, respectively. Medicare Part B premiums increased 2.63% from 0.00%. The municipal bond rate decreased from 3.89% to 3.50%. For fiscal year 2019, healthcare cost trend rates decreased to 0.00% from 1.02% for Medicare Part B premiums. The municipal bond index rate increased from 3.56% to 3.89%.
Change in benefit terms: There were no changes for fiscal years 2022 through 2019. For fiscal year 2018, the eligibility for non-single subsidies (NSS) for the KEHP-participating members who were retired prior to July 1, 2010, was restored, but the state will only finance, via its KEHP "Shared Responsibility" contributions, the costs of the NSS related to those KEHP participating members who were retired on or after July 1, 2010.
98.