CREATE TABLE table_17828 ("City/Town" TEXT, "July av. T" TEXT, "Rain" TEXT, "Days with rain  ( year/summer ) " TEXT, "Days with frost" FLOAT, "Sunlight hours" FLOAT)

What is the days with rain figure for the city of Santiago de Compostela?
SELECT "Days with rain (year/summer)" FROM table_17828 WHERE "City/Town" = 'Santiago de Compostela'
SELECT "Days with rain (year/summer)" FROM "table_17828" WHERE "City/Town" = 'Santiago de Compostela'