13. Perpetual usufruct of land

in PLN thousand	Perpetual usufruct of land
Gross carrying value at 1 January 2017	14 498

Gross carrying value at 31 December 2017	14 498

Gross carrying value as at 1 January 2018	14 498

Gross carrying value as at 31 December 2018	14 498

Accumulated depreciation and impairment losses at 1 January 2017	(1 410)
Depreciation for the period	(187)

Accumulated depreciation and impairment losses at 31 December 2017	(1 597)

Acumulated depreciation and impairment losses as at 1 January 2018	(1 597)
Depreciation for the period	(187)

Accumulated depreciation and impairment losses as at 31 December 2018	(1 784)
Net carrying value
As at 1 January 2017	13 088
As at 31 December 2017	12 901
As at 31 December 2018	12 714