;Seasonally adjusted, per cent;Working day adjusted, per cent;Index; 1st quarter 2018 - 2nd quarter 2018;2nd quarter 2017 - 2nd quarter 2018;2nd quarter 2018; Total;0.5;2.0;112.4; Buildings, total;0.0;1.9;113.6; Civil engineering works;2.6;3.1;108.0;