;Price index;Change in per cent;Change in per cent; 1st quarter 2018;4th quarter 2017 - 1st quarter 2018;1st quarter 2017 - 1st quarter 2018; Freight transport by road;116.9;0.8;1.1; Passenger air transport;107.3;-9.9;-5.2; Storage;106.4;-0.7;-1.1; Postal and courier activities;115.8;1.8;4.8; Telecommunication services;87.9;0.1;0.2; IT services;114.9;1.0;0.7; Legal activities;130.2;2.8;3.7; Accounting and auditing activities;127.1;1.0;2.6; Business and management consultancy activities;115.8;-1.4;2.8; Architectural activities;121.3;1.1;2.4; Civil engineering activities;114.9;-0.5;0.4; Technical testing and analysis;110.3;2.1;-0.7; Advertising;117.0;0.2;0.1; Employment activities;130.7;1.0;2.8; Cleaning activities;118.3;3.3;0.3;