| 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | |
|---|---|---|---|---|---|---|
| Total length of operated lines | 9 568 | 9 572 | 9 570 | 9 560 | 9 559 | 9 566 |
| by number of tracks | ||||||
| single track | 7 662 | 7 659 | 7 643 | 7 635 | 7 616 | 7 602 |
| double tracks and more | 1 906 | 1 913 | 1 927 | 1 925 | 1 943 | 1 964 |
| by gauge of tracks | ||||||
| standard gauge | 9 467 | 9 470 | 9 468 | 9 459 | 9 457 | 9 467 |
| narrow gauge | 102 | 102 | 102 | 102 | 102 | 99 |
| by nature of traffic | ||||||
| passenger only | 0 | 0 | 0 | 0 | 0 | 0 |
| goods only | 0 | 0 | 0 | 0 | 0 | 0 |
| passenger and goods transport | 9 568 | 9 572 | 9 570 | 9 560 | 9 559 | 9 566 |
| Total non-electrified lines | 6 357 | 6 355 | 6 353 | 6 345 | 6 343 | 6 329 |
| by number of tracks | ||||||
| single track | 6 285 | 6 281 | 6 280 | 6 272 | 6 270 | 6 256 |
| double tracks and more | 72 | 74 | 73 | 73 | 73 | 73 |
| by gauge of tracks | ||||||
| standard gauge | 6 255 | 6 253 | 6 251 | 6 243 | 6 241 | 6 230 |
| narrow gauge | 102 | 102 | 102 | 102 | 102 | 99 |
| by nature of traffic | ||||||
| passenger only | 0 | 0 | 0 | 0 | 0 | 0 |
| goods only | 0 | 0 | 0 | 0 | 0 | 0 |
| passenger and goods transport | 6 357 | 6 355 | 6 353 | 6 345 | 6 343 | 6 329 |
| Total electrified lines | 3 208 | 3 216 | 3 217 | 3 216 | 3 216 | 3 237 |
| by number of tracks | ||||||
| single track | 1 368 | 1 377 | 1 363 | 1 363 | 1 346 | 1 346 |
| double tracks and more | 1 839 | 1 839 | 1 854 | 1 852 | 1 870 | 1 891 |
| by gauge of tracks | ||||||
| standard gauge | 3 208 | 3 216 | 3 217 | 3 216 | 3 216 | 3 237 |
| narrow gauge | 0 | 0 | 0 | 0 | 0 | 0 |
| by nature of traffic | ||||||
| passenger only | 0 | 0 | 0 | 0 | 0 | 0 |
| goods only | 0 | 0 | 0 | 0 | 0 | 0 |
| passenger and goods transport | 3 208 | 3 216 | 3 217 | 3 216 | 3 216 | 3 237 |
| by type of current | ||||||
| 50 Hz/25 000 V | 1 390 | 1 390 | 1 391 | 1 383 | 1 383 | 1 401 |
| 15 000 V, 16 2/3 Hz | 14 | 14 | 14 | 14 | 14 | 14 |
| DC 3 000 V | 1 783 | 1 788 | 1 788 | 1 795 | 1 795 | 1 798 |
| DC 1 500 V | 24 | 24 | 24 | 24 | 24 | 24 |