5. Employee benefits expense


(in thousands of euros)

2018

2017

Short-term employee benefits

174,067

166,137

Post-retirement benefits

27,814

25,157

Other long-term employee benefits

2,417

3,668

Termination and unemployment benefits

9,957

2,285

Other staff costs

14,786

15,281

Total employee benefits

229,041

212,528

(in thousands of euros)

2018

2017

Salaries

178,380

167,061

Social charges

17,978

15,881

Internal hours capitalised

-22,291

-16,805

Total short-term employee benefits

174,067

166,137

Pension charges (defined contribution plans)

26,886

23,614

Early retirement benefits

928

1,543

Total post-retirement benefits

27,814

25,157

Jubilee benefits

-93

915

Long-term management bonuses

98

397

Other employee benefits

2,412

2,356

Total other long-term employee benefits

2,417

3,668

The average number of employees at Royal Schiphol Group N.V. and its subsidiaries on a full-time equivalent basis was 2,324 (2017: 2,180).

Termination and unemployment benefits in 2018 includes an amount of 8.3 million euros of costs Schiphol Group expects to incur in respect of restructurings in a few of its departments. The restructurings were announced in 2018 and implementation is ongoing or will commence in 2019.

The internal hours capitalised relate to time spent by employees in the development phases of investment projects. Other staff costs include training costs and travel expenses. The costs of post-retirement benefits, other long-term employee benefits and termination and unemployment benefits are explained in more detail in note 24. Employee benefits. For an explanation of the remuneration of Supervisory and Management Board members under Section 2:383c of the Dutch Civil Code, reference is made to the section entitled Related party disclosures.

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6. Depreciation, amortisation and impairment expenses