Table 4 Fiscal value and depreciation for limited companies, by depreciation groups. 2010. NOK million

4 Fiscal value and depreciation for limited companies, by depreciation groups. 2010. NOK million
	Total	Office machines	Acquired goodwill	Trailers, trucks, vans etc.	Passenger cars, tractors, machinery and such	Ships etc.	Aircrafts and helicopters	Installations for transmission and distribution of electric power and electrotechnical equipment in power companies	Buildings and installations	Commercial buildings	Technical installations in buildings


Opening balance per 1 January 2010	867 385	13 810	17 740	19 384	166 102	72 736	6 444	45 997	157 753	195 340	172 078

+ Purchase price of investments	140 367	5 366	7 027	8 128	49 488	13 347	2 513	2 934	20 319	18 750	12 497
+ Improvements of existing assets	12 355	141	10	121	1 852	3 617	72	427	2 145	2 272	1 699
- Depreciation and write-down¹	3 050	59	16	63	275	148	5	143	512	1 091	739
- Rest compensation by realisation²	40 162	255	2 157	2 459	12 202	9 803	828	65	4 896	5 122	2 373

Basis for this year's depreciation	976 896	19 003	22 603	25 110	204 965	79 748	8 196	49 149	174 810	210 149	183 162
Transferred to profit and loss account	7 077	-	1 398	-	-	2 855	-26	-3	1 351	1 532	-31
- This year's depreciation	98 593	5 628	4 666	4 997	40 453	10 459	969	2 386	7 071	4 102	17 861

Closing balance by 31 December 2010	885 380	13 375	19 335	20 113	164 511	72 144	7 201	46 760	169 090	207 580	165 270

Number of forms in the sample	309 954	38 256	11 489	37 165	94 338	5 253	449	2 085	46 451	25 536	48 932

¹	Includes downwritten value by separation of non-financial current assets, amount of downwriting with sales profit and government subsidies.
²	Includes compensation for realisation/value of turnover at withdrawal of non-financial current assets minus amount included in income 2010.