| Year | National road network | of which: length of the expressway network (motorways, motor-roads and interchanges)a | |||||
|---|---|---|---|---|---|---|---|
| paved with stone and road-brick | paved with concrete | paved with asphalt and bitumen | macadamized | unmetalled roads | total | ||
| 2001 | 24 | 64 | 28 401 | 1 506 | 327 | 30 322 | 505 |
| 2002 | 24 | 42 | 28 597 | 1 476 | 321 | 30 460 | 581 |
| 2003 | 25 | 43 | 28 899 | 1 271 | 298 | 30 536 | 632 |
| 2004 | 25 | 49 | 28 998 | 1 277 | 289 | 30 638 | 686 |
| 2005 | 25 | 73 | 29 168 | 1 254 | 288 | 30 808 | 985 |
| 2006 | 25 | 64 | 29 464 | 1 218 | 287 | 31 058 | 1 194 |
| 2007 | 23 | 58 | 29 646 | 1 179 | 277 | 31 183 | 1 331 |
| 2008 | 28 | 90 | 29 806 | 1 158 | 281 | 31 363 | 1 479 |
| 2009 | 24 | 101 | 29 823 | 1 147 | 282 | 31 377 | 1 478 |
| 2010 | 24 | 121 | 30 068 | 1 136 | 281 | 31 628 | 1 682 |
| 2011 | 24 | 120 | 30 151 | 1 123 | 281 | 31 698 | 1 721 |
| 2012 | 24 | 127 | 30 150 | 1 109 | 283 | 31 692 | 1 720 |
| 2013 | 24 | 138 | 30 229 | 1 092 | 277 | 31 760 | 1 767 |
| 2014 | 24 | 138 | 30 285 | 1 081 | 275 | 31 802 | 1 782 |
| 2015 | 23 | 140 | 30 424 | 1 061 | 276 | 31 925 | 1 884 |
| 2016 | 18 | 141 | 30 508 | 1 041 | 277 | 31 986 | 1 924 |
| 2017 | 18 | 142 | 30 533 | 1 037 | 277 | 32 006 | 1 937 |
| 2018 | 17 | 138 | 30 647 | 989 | 279 | 32 070 | 1 982 |
| 2019 | 17 | 138 | 30 794 | 979 | 276 | 32 204 | 2 076 |