CREATE TABLE table_68231 ("Date" TEXT, "Visitor" TEXT, "Score" TEXT, "Home" TEXT, "Decision" TEXT, "Attendance" FLOAT)

What is the average attendance San Jose home games?
SELECT AVG("Attendance") FROM table_68231 WHERE "Home" = 'san jose'
SELECT AVG("Attendance") FROM "table_68231" WHERE "Home" = 'san jose'