CREATE TABLE table_70225 ("Date" TEXT, "Opponent" TEXT, "Venue" TEXT, "Result  ( Celtic score first ) " TEXT, "Attendance" FLOAT, "Match report" TEXT)

What was the Attendance during the Home game where St. Johnstone was the Opponent?
SELECT COUNT("Attendance") FROM table_70225 WHERE "Opponent" = 'st. johnstone' AND "Venue" = 'home'
SELECT COUNT("Attendance") FROM "table_70225" WHERE "Opponent" = 'st. johnstone' AND "Venue" = 'home'