Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Stage | Date | Route | Stage Winner | GC Leader |
| --- | --- | --- | --- | --- |
| 1.0 | 6 September | Lisbon - Estoril | Lars Michaelsen | Lars Michaelsen |
| 2.0 | 7 September | Évora - Vilamoura | Marcel Wüst | Lars Michaelsen |
| 3.0 | 8 September | Loulé - Huelva | Marcel Wüst | Lars Michaelsen |
| 4.0 | 9 September | Huelva - Jerez de la Frontera | Eleuterio Anguita | Fabrizio Guidi |
| 5.0 | 10 September | Jerez de la Frontera - Málaga | Marcel Wüst | Lars Michaelsen |
| 6.0 | 11 September | Málaga - Granada | Laurent Jalabert | Laurent Jalabert |
| 7.0 | 12 September | Guadix - Sierra Nevada | Yvon Ledanois | Laurent Dufaux |
| 8.0 | 13 September | Granada - Córdoba | Bart Voskamp | Laurent Dufaux |
| 9.0 | 14 September | Córdoba | Melchor Mauri | Alex Zülle |
| 10.0 | 15 September | Córdoba - Almendralejo | Mariano Piccoli | Alex Zülle |
| 11.0 | 16 September | Almendralejo - Plasencia | Ján Svorada | Alex Zülle |
| 12.0 | 17 September | León - Alto del Morredero | Roberto Heras | Alex Zülle |
| 13.0 | 18 September | Ponferrada - Estación Valgrande-Pajares | Pavel Tonkov | Alex Zülle |
| 14.0 | 19 September | Oviedo - Alto del Naranco | José Vicente García Acosta | Alex Zülle |
| 15.0 | 20 September | Oviedo - Lagos de Covadonga | Pavel Tonkov | Alex Zülle |
| 16.0 | 21 September | Cangas de Onís - Santander | Ján Svorada | Alex Zülle |
| 17.0 | 22 September | Santander - Burgos | Ján Svorada | Alex Zülle |
| 18.0 | 23 September | Burgos - Valladolid | Leon van Bon | Alex Zülle |
| 19.0 | 24 September | Valladolid - Los Ángeles de San Rafael | José María Jiménez | Alex Zülle |
| 20.0 | 25 September | Los Ángeles de San Rafael - Ávila | Laurent Jalabert | Alex Zülle |
| 21.0 | 26 September | Alcobendas | Alex Zülle | Alex Zülle |
| 22.0 | 27 September | Madrid | Max Van Heeswijk | Alex Zülle |
Question:
When did stage 5 occur?
Answer:
10 September