;NOK Billion;NOK Billion;NOK Billion;Change in per cent from the previous year;Change in per cent from the previous year; October 2015;October 2016;October 2017;October 2016;October 2017; Distributed taxes, total;666;630;657;-5.4;4.3; Taxes to local government;135;145;151;8.1;3.7; Taxes to the central government;189;190;199;0.3;5.2; Taxes on extraction of petroleum;104;51;56;-51.5;11.3; Contributions to the National Insurance Scheme;238;244;251;2.7;2.6;