;April 2017;April 2017;April 2017; Change from last month, per cent;Change from last year, per cent;Index; Residential buildings;0.5;2.7;180.3; Residential buildings, labour cost;0.0;2.4;186.2; Residential buildings, materials;1.0;2.7;183.8; Detached houses of wood;0.6;2.6;181.6; Detached houses of wood, materials;1.1;2.7;183.6; Detached houses of wood, other building work;0.7;2.6;182.4; Detached houses of wood, other building work, materials;1.2;2.6;182.6; Multi-dwelling houses;0.3;2.9;179.9; Multi-dwelling houses, materialsr;1.0;3.0;189.6;