| Detached houses of wood |  |  | 
 | Detached houses of wood, total | 141.9 | 145.1 | 
 | Detached houses of wood, total, materials | 140.9 | 143.9 | 
 |  |  |  | 
 | Stone, clay and cement work | 144.8 | 147.1 | 
 | Stone, clay and cement work, materials | 148.5 | 149.4 | 
 |  |  |  | 
 | Site preparation | 141.1 | 144.2 | 
 | Site preparation, materials | 141.7 | 144.8 | 
 |  |  |  | 
 | Other work | 141.3 | 144.7 | 
 | Other work, materials | 139.8 | 143.1 | 
 |  |  |  | 
 | Carpentering | 138.3 | 140.8 | 
 | Carpentering, materials | 134.4 | 136.6 | 
 |  |  |  | 
 | Painting, paperhanging and floor coating | 129.8 | 134.9 | 
 | Painting, paperhanging and floor coating, materials | 119.1 | 123.4 | 
 |  |  |  | 
 | Plumbing | 158.3 | 162.5 | 
 | Plumbing, materials | 171.8 | 176.6 | 
 |  |  |  | 
 | Electrician installation work | 170.9 | 181.8 | 
 | Electrician installation work, materials | 202.6 | 221.3 | 
 |  |  |  | 
 | Multi-dwelling houses |  |  | 
 | Multi-dwelling houses, total | 144.4 | 145.8 | 
 | Multi-dwelling houses, total, materials | 149.1 | 149.3 | 
 |  |  |  | 
 | Site preparation | 140.5 | 143.0 | 
 | Site preparation, materials | 151.7 | 150.0 | 
 |  |  |  | 
 | Carpentering | 137.9 | 140.2 | 
 | Carpentering, materials | 133.5 | 135.3 | 
 |  |  |  | 
 | Painting, paperhanging and floor coating | 133.2 | 138.4 | 
 | Painting, paperhanging and floor coating, materials | 122.0 | 126.1 | 
 |  |  |  | 
 | Plumbing | 160.2 | 164.8 | 
 | Plumbing, materials | 174.3 | 179.8 | 
 |  |  |  | 
 | Electrician installation work | 167.4 | 177.7 | 
 | Electrician installation work, materials | 202.4 | 221.8 | 
 |  |