Bluff County€™s schedule of changes in net pension liability and related ratios is shown below. 

Required
Compute the missing amounts.

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BLUFF COUNTY EMPLOYEE RETIREMENT SYSTEM Schedule of Changes in the County's Net Pension Liability and Related Ratios Last Three Fiscal Years 2020 2019 2018 Total pension liability $ 123,225 $125,440 $ 127,950 182,580 Service cost Interest 169,960 (a) 1,250 Differences between expected and actual experience Benefit payments (including refunds of employee contributions) (850) 625 (248,000) 66,205 (217,960) (0) 1,927,550 (p) (g) 75,590 (h) (1) Net change in total pension liability Total pension liability, beginning Total pension liability, ending Plan fiduciary net position Contributions-employee Contributions-employer 2,083,715 (b) 32,450 $ 36,240 98,620 18,990 (a) 91,550 (21,510) 102,530 Net investment income (1) Benefit payments (including refunds of employee contributions) (51,330) (2,840) (r) (64,500) (3,290) (42,780) (3,110) 80,500 Administrative expenses Net change in plan fiduciary net position Plan fiduciary net position, beginning Plan fiduciary net position, ending Net pension liability, ending Plan fiduciary net position as a percentage of total pension liability Covered payroll Net pension liability as a percentage of covered payroll (c) (d) 1,220,490 $ 929,430 (k) (1) (m) 1,011,680 1,057,720 (s) 54.62% 52.67% (e) (f) 185.09% $ 489,810 (n) 194.86% (t)