Table 3 Fiscal value and depreciation for limited companies, by depreciation groups. 2006. NOK million

3 Fiscal value and depreciation for limited companies, by depreciation groups. 2006. NOK million
	Total	Office machines	Acquired goodwill	Trailers, trucks, vans etc.	Passenger cars, tractors, machinery and such	Ships etc.	Aircrafts and helicopters	Buildings and installations¹	Commercial buildings


Opening amount per 1 January 2006	642 040	14 399	28 914	15 273	135 755	61 182	5 222	195 334	185 961

+ Purchase price of investments	142 732	5 997	2 583	7 584	46 556	24 849	1 527	22 465	31 172
+ Improvements of existing assets	7 066	142	16	116	948	555	56	1 992	3 241
- Depreciation and write-down²	11 856	291	32	8	302	7 354	18	2 209	1 642
- Rest compensation by realisation³	47 861	363	1 224	2 378	8 188	10 993	1 724	7 044	15 946

Basis for this year's depreciation	732 121	19 884	30 257	20 586	174 769	68 240	5 062	210 537	202 786

Transferred to profit and loss account	9 985	-	752	-	-	2 629	531	2 090	3 982
- This year's depreciation	71 721	5 804	5 862	4 098	33 870	8 609	647	8 872	3 960

Closing amount by 31 December 2006	670 385	14 080	25 146	16 488	140 900	62 261	4 946	203 756	202 808

Number of forms in the sample	233 152	39 997	11 707	32 840	82 663	4 545	387	39 666	21 347

¹	Includes installations for transmission and distribution of electric power and electrotechnical equipment in power companies.
²	Includes downwritten value by separation of non-financial current assets, amount of downwriting with sales profit and government subsidies.
³	Includes compensation for realisation/value of turnover at withdrawal of non-financial current assets minus amount included in income 2006.