CREATE TABLE table_17156 ("Player" TEXT, "No. ( s ) " TEXT, "Height in Ft." TEXT, "Position" TEXT, "Years for Rockets" TEXT, "School/Club Team/Country" TEXT)

Which years had a jersey number 55
SELECT "Years for Rockets" FROM table_17156 WHERE "No.(s)" = '55'
SELECT "Years for Rockets" FROM "table_17156" WHERE "No.(s)" = '55'