CREATE TABLE table_17147 ("Player" TEXT, "No. ( s ) " TEXT, "Height in Ft." TEXT, "Position" TEXT, "Years for Rockets" TEXT, "School/Club Team/Country" TEXT)

Rockets height was 6-6 in feet, list the time frame where this was true?
SELECT "Years for Rockets" FROM table_17147 WHERE "Height in Ft." = '6-6'
SELECT "Years for Rockets" FROM "table_17147" WHERE "Height in Ft." = '6-6'