In nominal terms, the average gross monthly wage rose by 5.8% to 1,856.20 euro last year, the statistical office said in a statement on Monday.
On a monthly comparison basis, net wages fell 1.0% in December to 1,314.62 euro, after rising 13.3% in November.
The average gross monthly salary in Slovenia was 2,021.21 euro in December, down 0.3% month-on-month.
($ = 0.821896 euro)