Table:
text: 1997 Vuelta a España
Stages
Stages
Stage Date_ Route Stage_Winner GC_Leader
1 6 September Lisbon - Estoril Lars Michaelsen Lars Michaelsen
2 7 September Évora - Vilamoura Marcel Wüst Lars Michaelsen
3 8 September Loulé - Huelva Marcel Wüst Lars Michaelsen
4 9 September Huelva - Jerez de la Frontera Eleuterio Anguita Fabrizio Guidi
5 10 September Jerez de la Frontera - Málaga Marcel Wüst Lars Michaelsen
6 11 September Málaga - Granada Laurent Jalabert Laurent Jalabert
7 12 September Guadix - Sierra Nevada Yvon Ledanois Laurent Dufaux
8 13 September Granada - Córdoba Bart Voskamp Laurent Dufaux
9 14 September Córdoba Melchor Mauri Alex Zülle

text: 1997 Vuelta a España
Stages
Stages
Stage Date_ Route Stage_Winner GC_Leader
19 24 September Valladolid - Los Ángeles de San Rafael José María Jiménez Alex Zülle
20 25 September Los Ángeles de San Rafael - Ávila Laurent Jalabert Alex Zülle
21 26 September Alcobendas Alex Zülle Alex Zülle
22 27 September Madrid Max Van Heeswijk Alex Zülle

Question: Who is the GC leader when Laurent Jalabert was the stage winner and the 1997 Vuelta a España stage was more than 6?