CREATE TABLE table_58226 ("Rank" FLOAT, "Movie" TEXT, "Year" FLOAT, "Worldwide Gross" TEXT, "Director" TEXT, "Verdict" TEXT)

What is average year for ayan mukerji?
SELECT AVG("Year") FROM table_58226 WHERE "Director" = 'ayan mukerji'
SELECT AVG("Year") FROM "table_58226" WHERE "Director" = 'ayan mukerji'