SELECT SUM("Crowd") FROM table_11600 WHERE "Venue" = 'vfl park'
How many people attended games at vfl park?
CREATE TABLE table_11600 (
    "Home team" text,
    "Home team score" text,
    "Away team" text,
    "Away team score" text,
    "Venue" text,
    "Crowd" real,
    "Date" text
)