user: Question: What was the lowest Crowd total from a game in which Essendon was the Away team?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Geelong', '14.16 (100)', 'Hawthorn', '13.13 (91)', 'Kardinia Park', 10072.0, '25 July 1959']
SQL:

assistant: SELECT MIN("Crowd") FROM "Table" WHERE "Away team" = 'Essendon';