;Total amount (NOK million);Total amount (NOK million);Per cent change from same month the previous year;Total amount so far this year (NOK million);Total amount so far this year (NOK million);Per cent change from accumulated amount so far the previous year; ;February 2020;February 2021;;February 2020;February 2021;; Total basis for employer's National insurance contributions;86907.7;86563.7;-0.4;168810.0;167268.3;-0.9; Calculated employer's National insurance contributions;11444.9;11410.6;-0.3;22228.1;22045.6;-0.8; Payment in cash;82044.5;80533.6;-1.8;160398.4;157763.2;-1.6;