|   | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 |
|---|---|---|---|---|---|---|
| Total number of bus lines within the region | 19 787 | 19 816 | 20 310 | 20 723 | 20 441 | 20 741 |
| of which: | ||||||
| workdays | 16 011 | 16 092 | 16 489 | 16 721 | 16 708 | 16 698 |
| Saturdays | 1 432 | 1 382 | 1 406 | 1 474 | 1 476 | 1 512 |
| Sundays and holidays | 2 344 | 2 342 | 2 415 | 2 528 | 2 257 | 2 531 |
Source: CIS