CREATE TABLE table_25053 ("Rank Subcontinent" FLOAT, "Rank Asia" FLOAT, "Rank World" FLOAT, "Country" TEXT, "2011 GDP  ( PPP )  billions of USD" TEXT)

Name the number of rank world for bhutan
SELECT COUNT("Rank World") FROM table_25053 WHERE "Country" = 'Bhutan'
SELECT COUNT("Rank World") FROM "table_25053" WHERE "Country" = 'Bhutan'