Collective Balances at December 31, 2017 and December 31, 2016
| 12/31/2017 | 12/31/2016 | |
| Actuarial valuation date (including roll forward) | June 30, 2017 | June 30, 2016 |
| Deferred Outflows of Resources | $ 8,132,992 | $ 13,608,644 |
| Deferred Inflows of Resources | 7,709,393 | 360,227 |
| Net Pension Liability | 44,137,838 | 54,953,306 |
| Township's portion of the Plan's total net pension Liability | 0.28590% | 0.28768% |
Pension Expense and Deferred Outflows/Inflows of Resources – At December 31, 2017, the Township’s proportionate share of the PFRS expense, calculated by the plan as of the June 30, 2017 measurement date was $4,540,174. This expense is not recognized by the Township because of the regulatory basis of accounting as described in Note 1, but as previously mentioned the Township contributed $2,530,291 to the plan in 2017.
At December 31, 2017, the Township had deferred outflows of resources and deferred inflows of resources related to PFRS from the following sources:
Deferred Outflows of Resources Deferred Inflows of Resources
Differences between Expected and Actual Experience $ 286,340 $ 259,052
Changes of Assumptions 5,442,687 7,228,487
Net Difference between Projected and Actual Earnings on Pension Plan Investments 842,253 -
Changes in Proportion and Differences between Township Contributions and Proportionate Share of Contributions 1,561,712 221,854
$ 8,132,992 $ 7,709,393
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