| Road constructions, total | 98.4 | 98.5 | 98.9 | 99.7 | 100.0 | 102.3 | 103.5 | 104.4 | 105.0 | 5.0 | 0.6 | 
 | Road construction, total, materials | 98.4 | 99.1 | 99.3 | 99.4 | 100.0 | 105.8 | 108.9 | 108.3 | 110.1 | 10.1 | 1.7 | 
 | Road construction, total, machinery1 | 99.0 | 98.3 | 99.0 | 99.7 | 100.0 | 101.8 | 102.6 | 103.2 | 102.2 | 2.2 | -1.0 | 
 | Road construction, total, labour cost | 96.9 | 97.4 | 97.7 | 100.1 | 100.0 | 100.3 | 100.4 | 102.5 | 103.2 | 3.2 | 0.7 | 
 |  |  |  |  |  |  |  |  |  |  |  |  | 
 | Open air road | .. | .. | .. | .. | 100.0 | 102.1 | 102.8 | 103.2 | 103.8 | 3.8 | 0.6 | 
 | Open air road, materials | .. | .. | .. | .. | 100.0 | 104.8 | 106.3 | 104.3 | 106.0 | 6.0 | 1.6 | 
 |  |  |  |  |  |  |  |  |  |  |  |  | 
 | Concrete bridge | .. | .. | .. | .. | 100.0 | 103.8 | 106.5 | 108.6 | 109.4 | 9.4 | 0.7 | 
 | Concrete bridge, materials | .. | .. | .. | .. | 100.0 | 110.6 | 118.6 | 120.6 | 122.4 | 22.4 | 1.5 | 
 |  |  |  |  |  |  |  |  |  |  |  |  | 
 | Rock tunnel | .. | .. | .. | .. | 100.0 | 101.3 | 102.3 | 103.4 | 103.9 | 3.9 | 0.5 | 
 | Rock tunnel, materials | .. | .. | .. | .. | 100.0 | 103.1 | 105.1 | 105.7 | 107.4 | 7.4 | 1.6 | 
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