CREATE TABLE table_75227 ("Year" FLOAT, "Class" CLOB, "Team" CLOB, "Machine" CLOB, "Points" FLOAT, "Rank" CLOB, "Wins" FLOAT)

Which year had a team of Aprilia and a rank of 4th?
SELECT "Year" FROM table_75227 WHERE "Team" = 'aprilia' AND "Rank" = '4th'
SELECT "Year" FROM "table_75227" WHERE "Rank" = '4th' AND "Team" = 'aprilia'