CREATE TABLE table_62629 ("Perpetrator" TEXT, "Date" TEXT, "Year" FLOAT, "Location" TEXT, "Country" TEXT, "Killed" FLOAT, "Injured" TEXT)

What is the average Year, when Country is 'U.S.', and when Location is 'Edmond , OK'?
SELECT AVG("Year") FROM table_62629 WHERE "Country" = 'u.s.' AND "Location" = 'edmond , ok'
SELECT AVG("Year") FROM "table_62629" WHERE "Country" = 'u.s.' AND "Location" = 'edmond , ok'