CREATE TABLE table_71168 ("Rider" CLOB, "Year" FLOAT, "Final Position - Giro" FLOAT, "Final Position - Tour" FLOAT, "Final Position - Vuelta" FLOAT)

What is the average year that has a final Tour position of 54 and a final Vuelta position over 55?
SELECT AVG("Year") FROM table_71168 WHERE "Final Position - Tour" = '54' AND "Final Position - Vuelta" > '55'
SELECT AVG("Year") FROM "table_71168" WHERE "Final Position - Tour" = '54' AND "Final Position - Vuelta" > '55'