CREATE TABLE table_36773 ("Call sign" TEXT, "Frequency" TEXT, "City of license" TEXT, "Facility ID" FLOAT, "ERP / Power W" FLOAT, "Height m  (  ft  ) " TEXT, "Class" TEXT)

WHich Facility ID has a Call sign of wnpr?
SELECT AVG("Facility ID") FROM table_36773 WHERE "Call sign" = 'wnpr'
SELECT AVG("Facility ID") FROM "table_36773" WHERE "Call sign" = 'wnpr'