| - Basic Statistics on National Railways in Operation | | | | | | | |
| Item | 1985 | 1990 | 1995 | 2000 | 2005 | 2008 | 2009 |
| Length of Railways in Operation (km) | ***** | ***** | ***** | ***** | ***** | ***** | ***** |
| In Formal Operation | ***** | ***** | ***** | ***** | ***** | ***** | ***** |
| In Temporary Operation | **** | **** | **** | **** | **** | **** | **** |
| Proportion of the Length in Formal Operation | **** | **** | **** | **** | **** | **** | **** |
| Double-Tracking Length (km) | **** | ***** | ***** | ***** | ***** | ***** | ***** |
| As Percentage of the Length of Railways | **** | **** | **** | **** | **** | **** | **** |
| in Operation | | | | | | | |
| Length of Electrified Railways (km) | **** | **** | **** | ***** | ***** | ***** | ***** |
| As Percentage of Railways in Operation | *** | **** | **** | **** | **** | **** | **** |
| Length of Diesel Engine Routes (km) | ***** | ***** | ***** | ***** | ***** | ***** | ***** |
| As Percentage of Railways in Operation | **** | **** | **** | **** | **** | **** | **** |
| Length under Centralized Traffic Control (km) | **** | **** | **** | **** | **** | **** | ***** |
| Automatic Blocking Length (km) | **** | ***** | ***** | ***** | ***** | ***** | ***** |
| Semi-automatic Blocking Length (km) | ***** | ***** | ***** | ***** | ***** | ***** | ***** |
| Length of Continuous Welded Rail (km) | ***** | ***** | ***** | ***** | ***** | ***** | ***** |
| Relay Interlocking Station (unit) | | | | | | **** | **** |
| As Percentage of Stations in Operation | | | | | | **** | **** |
| Computer Interlocking Station (unit) | | | | | | **** | **** |
| As Percentage of Stations in Operation | | | | | | **** | **** |