| Road constructions, total | 108.3 | 109.0 | 110.4 | 111.7 | 113.3 | 114.4 | 116.8 | 118.9 | 122.2 | 7.9 | 2.8 | 
 | Road construction, total, materials | 114.9 | 116.3 | 118.6 | 119.5 | 120.7 | 122.3 | 126.2 | 128.8 | 130.0 | 7.7 | 0.9 | 
 | Road construction, total, machinery1 | 106.4 | 106.3 | 106.8 | 108.1 | 106.8 | 107.5 | 109.5 | 112.3 | 119.6 | 12.0 | 6.5 | 
 | Road construction, total, labour cost | 104.9 | 104.8 | 106.0 | 107.6 | 111.2 | 112.9 | 115.2 | 116.9 | 119.6 | 7.6 | 2.3 | 
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 | Open air road | 107.7 | 108.3 | 109.8 | 110.7 | 111.7 | 112.6 | 115.3 | 117.5 | 121.4 | 8.7 | 3.3 | 
 | Open air road, materials | 112.8 | 114.3 | 117.3 | 116.7 | 116.8 | 117.6 | 122.3 | 124.8 | 126.6 | 8.4 | 1.4 | 
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 | Concrete bridge | 111.2 | 111.9 | 113.4 | 115.6 | 118.6 | 120.2 | 122.9 | 124.7 | 127.0 | 7.1 | 1.8 | 
 | Concrete bridge, materials | 123.3 | 124.4 | 126.7 | 130.6 | 134.6 | 136.9 | 141.7 | 144.5 | 144.5 | 7.4 | 0.0 | 
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 | Rock tunnel | 107.0 | 107.9 | 108.9 | 110.4 | 112.1 | 113.0 | 114.2 | 116.3 | 119.2 | 6.3 | 2.5 | 
 | Rock tunnel, materials | 111.3 | 112.8 | 113.4 | 115.1 | 115.8 | 118.7 | 119.7 | 122.3 | 123.3 | 6.5 | 0.8 | 
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