SELECT SUM("Week") FROM table_64302 WHERE "Attendance" > '56,134' AND "Opponent" = 'minnesota vikings'
What is the total weeks with more 56,134 attendees against the minnesota vikings?
CREATE TABLE table_64302 (
    "Week" real,
    "Date" text,
    "Opponent" text,
    "Result" text,
    "Attendance" real
)