CREATE TABLE table_31750 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Venue" TEXT, "Start Time" TEXT, "Attendance" TEXT)

Tell me the number of weeks for bye
SELECT COUNT("Week") FROM table_31750 WHERE "Date" = 'bye'
SELECT COUNT("Week") FROM "table_31750" WHERE "Date" = 'bye'