user: Question: What's the average number of people in the Crowd that attend Essendon games as the Home 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: ['Fitzroy', '15.13 (103)', 'Footscray', '11.19 (85)', 'Junction Oval', 8680.0, '9 July 1977']
SQL:

assistant: SELECT AVG("Crowd") FROM "Table" WHERE "Home team" = 'Essendon';