user: Question: How many pole position achieved 0 points from Mexico?
Columns: ['Name', 'Nation', 'Seasons', 'Championship titles', 'Races (Starts)', 'Poles', 'Wins', 'Podiums', 'Fastest Laps', 'Points']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'real', 'real', 'real', 'text']
Sample row: ['Daniel Abt Category:Articles with hCards', 'Germany', '2012', '0', '16', 1.0, 2.0, 7.0, 0.0, '149.5']
SQL:

assistant: SELECT SUM("Poles") FROM "Table" WHERE "Points" = '0' AND "Nation" = 'Mexico';