CREATE TABLE table_35243 ("Week" FLOAT, "Date" CLOB, "Opponent" CLOB, "Result" CLOB, "Record" CLOB, "Game Site" CLOB, "Attendance" FLOAT)

How many attendances had the Detroit Lions as opponents?
SELECT SUM("Attendance") FROM table_35243 WHERE "Opponent" = 'detroit lions'
SELECT SUM("Attendance") FROM "table_35243" WHERE "Opponent" = 'detroit lions'