CREATE TABLE table_77965 ("Rank" FLOAT, "Rmax Rpeak  (  Pflops  ) " TEXT, "Name" TEXT, "Vendor" TEXT, "Operating system" TEXT)

What is the rank of Rmax Rpeak ( Pflops ) of 17.173 20.133?
SELECT AVG("Rank") FROM table_77965 WHERE "Rmax Rpeak ( Pflops )" = '17.173 20.133'
SELECT AVG("Rank") FROM "table_77965" WHERE "Rmax Rpeak ( Pflops )" = '17.173 20.133'