user: Question: Who was the leader at the summit for the race in 2005?
Columns: ['Year', 'Stage', 'Category', 'Start', 'Finish', 'Leader at the summit']
Types: ['real', 'real', 'text', 'text', 'text', 'text']
Sample row: [2013.0, 8.0, 'HC', 'Castres', 'Ax-3 Domaines', 'Nairo Quintana ( COL )']
SQL:

assistant: SELECT "Leader at the summit" FROM "Table" WHERE "Year" = 2005.0;