CREATE TABLE table_12270 ("Shooter" TEXT, "Event" TEXT, "Rank points" TEXT, "Score points" TEXT, "Total" TEXT)

The event WC Rio De Janeiro with a total of 16 has what as rank points?
SELECT "Rank points" FROM table_12270 WHERE "Event" = 'wc rio de janeiro' AND "Total" = '16'
SELECT "Rank points" FROM "table_12270" WHERE "Event" = 'wc rio de janeiro' AND "Total" = '16'