CREATE TABLE table_76919 ("Title" CLOB, "Details" CLOB, "Track Title" CLOB, "Label" CLOB, "Year" FLOAT)

What average year contains the title of machineries of joy vol. 4?
SELECT AVG("Year") FROM table_76919 WHERE "Title" = 'machineries of joy vol. 4'
SELECT AVG("Year") FROM "table_76919" WHERE "Title" = 'machineries of joy vol. 4'