;2017;2017; Group 1: EU/EFTA, North-America, Australia and New Zealand;Group 2: Europe except EU/EFTA, Asia, Turkey, Africa, South- and Central-America, Oceania except Australia and New Zealand; Absolute figures;;; Less than 1 year;9586;3759; 1 - 2 years;11175;6115; 2 - 3 years;12854;6843; 2 - 4 years;14285;6918; 4 - 5 years;15260;8293; 5 - 6 years;15541;9240; 6 - 7 years;17198;8461; 7 - 10 years;42712;24710; 10 - 15 years;33018;32973; 10 - 15 years;41781;79686; ;;; Per cent;;; Less than 1 year;70.2;25.1; 1 - 2 years;69.1;28.8; 2 - 3 years;67.0;40.8; 2 - 4 years;67.9;49.1; 4 - 5 years;70.4;55.2; 5 - 6 years;72.5;59.4; 6 - 7 years;74.6;63.7; 7 - 10 years;77.9;65.8; 10 - 15 years;80.9;65.4; 10 - 15 years;77.0;61.0;