
| 1st quarter 2013 | Change in per cent | ||
|---|---|---|---|
| 4th quarter 2012 - 1st quarter 2013 | 1st quarter 2012 - 1st quarter 2013 | ||
| Road construction, total | 147.1 | 0.9 | 2.1 |
| Open air roads | 147.2 | 0.8 | 1.7 |
| Concrete bridges | 151.6 | 0.6 | 2.4 |
| Rock tunnels | 141.9 | 1.8 | 3.2 |
| Maintenance of roads, total | 147.8 | 0.6 | 1.0 |
| Asphalt work | 165.7 | 0.4 | -1.8 |
| Maintenance in wintertime | 139.9 | 0.7 | 1.5 |