CREATE TABLE "table1_2293510_1" (
  "region_nuts_2006" text,
  "total_million" text,
  "per_capita_2005" real,
  "ppp_million" real,
  "ppp_per_capita" real,
  "pct_of_eu_average_gdp_ppp" text
);

Question: Where is the PPP 23164 million €?
SQL: SELECT "region_nuts_2006" FROM "table1_2293510_1" WHERE "ppp_million"=23164;

Question: What's the total (in million €) in the region where PPP is 21779 million €?
SQL: SELECT "total_million" FROM "table1_2293510_1" WHERE "ppp_million"=21779;

Question: What's the percentage of EU average GDP (PPP) in the region where € per capita is 2519
SQL: SELECT "pct_of_eu_average_gdp_ppp" FROM "table1_2293510_1" WHERE "per_capita_2005"=2519;