| Road constructions, total | 104.4 | 105.0 | 106.3 | 107.0 | 108.3 | 109.0 | 110.4 | 111.7 | 113.3 | 4.6 | 1.4 | 
 | Road construction, total, materials | 108.3 | 110.1 | 113.4 | 113.9 | 114.9 | 116.3 | 118.6 | 119.5 | 120.7 | 5.0 | 1.0 | 
 | Road construction, total, machinery1 | 103.2 | 102.2 | 103.2 | 104.9 | 106.4 | 106.3 | 106.8 | 108.1 | 106.8 | 0.4 | -1.2 | 
 | Road construction, total, labour cost | 102.5 | 103.2 | 102.9 | 103.0 | 104.9 | 104.8 | 106.0 | 107.6 | 111.2 | 6.0 | 3.3 | 
 |  |  |  |  |  |  |  |  |  |  |  |  | 
 | Open air road | 103.2 | 103.8 | 105.5 | 106.4 | 107.7 | 108.3 | 109.8 | 110.7 | 111.7 | 3.7 | 0.9 | 
 | Open air road, materials | 104.3 | 106.0 | 110.8 | 111.7 | 112.8 | 114.3 | 117.3 | 116.7 | 116.8 | 3.5 | 0.1 | 
 |  |  |  |  |  |  |  |  |  |  |  |  | 
 | Concrete bridge | 108.6 | 109.4 | 109.9 | 110.1 | 111.2 | 111.9 | 113.4 | 115.6 | 118.6 | 6.7 | 2.6 | 
 | Concrete bridge, materials | 120.6 | 122.4 | 123.5 | 123.2 | 123.3 | 124.4 | 126.7 | 130.6 | 134.6 | 9.2 | 3.1 | 
 |  |  |  |  |  |  |  |  |  |  |  |  | 
 | Rock tunnel | 103.4 | 103.9 | 104.8 | 105.4 | 107.0 | 107.9 | 108.9 | 110.4 | 112.1 | 4.8 | 1.5 | 
 | Rock tunnel, materials | 105.7 | 107.4 | 109.2 | 109.6 | 111.3 | 112.8 | 113.4 | 115.1 | 115.8 | 4.0 | 0.6 | 
 |  |