What is the sum of the pop density people/km2 with a population % of EU of 0.1%, an area % of EU of 0.1%, and has more than 0.5 population in millions?
CREATE TABLE "area_and_population" (
  "member_state" text,
  "population_in_millions" real,
  "population_pct_of_eu" text,
  "area_km_2" real,
  "area_pct_of_eu" text,
  "pop_density_people_km_2" real
);
SELECT SUM("pop_density_people_km_2") FROM "area_and_population" WHERE "population_pct_of_eu"='0.1%' AND "area_pct_of_eu"='0.1%' AND "population_in_millions">0.5;