Monthly earnings up 3.2 per cent. Average monthly earnings for all employees, excluding overtime pay, were NOK 42 300 per 3rd quarter 2014. This was a year-on-year increase of NOK 1 300 or 3.2 per cent.ull-time employees had average monthly earnings of NOK 43 800, which corresponds to a year-on-year increase of NOK 1 300 or 3.1 per cent from 2013. Monthly earnings for part-time employees were NOK 34 900, which was a rise of NOK 1 100 or 3.3 per cent.