;2017;2017;2017;2017;2017;2017;2017;2017; Norwegian Ordinary Ship Register;Norwegian Ordinary Ship Register;Norwegian Ordinary Ship Register;Norwegian Ordinary Ship Register;Norwegian International Ship Register;Norwegian International Ship Register;Norwegian International Ship Register;Norwegian International Ship Register; Norwegain owned;Norwegain owned;Foreign owned;Foreign owned;Norwegian owned;Norwegian owned;Foreign owned;Foreign owned; Vessels;Tonnage, measured (gross tonnes);Vessels;Tonnage, measured (gross tonnes);Vessels;Tonnage, measured (gross tonnes);Vessels;Tonnage, measured (gross tonnes); 04- years;117;285280;13;52459;75;3143194;20;693927; 5-9 years;131;499467;6;39170;114;3024620;24;923110; 10-14 years;76;331443;3;18716;109;3031221;21;645795; 15-19 years;79;288354;2;6764;54;1467863;15;448423; 20-24 years;42;119951;1;476;33;579480;6;110701; 25-29 years;36;63192;0;0;11;37170;8;77212; 30 years and over;374;247718;0;0;25;186020;5;95222; Unknown age;0;0;0;0;0;0;0;0;