CREATE TABLE table_25586 ("Region  (  NUTS 2006 ) " TEXT, "Total  ( million \\u20ac  ) " TEXT, "\\u20ac per capita  ( 2005 ) " FLOAT, "PPP  ( million \\u20ac ) " FLOAT, "PPP \\u20ac per capita" FLOAT, "% of EU average GDP  ( PPP ) " TEXT)

Where is the PPP 23164 million ?
SELECT "Region ( NUTS 2006)" FROM table_25586 WHERE "PPP (million \u20ac)" = '23164'
SELECT "Region ( NUTS 2006)" FROM "table_25586" WHERE "PPP (million \u20ac)" = '23164'