Table 2 Full-time employees in electricity supply. Average monthly earnings, by educational level per 1 October 2007. NOK

2 Full-time employees in electricity supply¹. Average monthly earnings, by educational level² per 1 October 2007. NOK
Educational level	Monthly earnings			Percentage change

Educational level	2005	2006	2007	2005-2006	2006-2007

	NOK			Per cent
Electricity supply, total	33 079	34 492	38 222	4.3	10.8
Of which
Primary and lower secondary education	24 252	25 935	27 807	6.9	7.2
Upper secondary education	29 299	30 084	33 016	2.7	9.7
Tertial education, 4 years or less	39 844	40 458	44 145	1.5	9.1
Tertial education, more than 4 years	51 807	52 912	56 356	2.1	6.5

¹	Standard Industrial Classification.
²	Norwegian Standard Classification of Education.