Question: What is the density for the area that is larger than 4015.6 and a population smaller than 6178?
SQL: SELECT COUNT("Density (km 2 )") FROM "2-13764346-1" WHERE "Area (km 2 )" > 4015.6 AND "2002 population" < 6178.0;

Question: What is the density that has an area smaller than 2200.2 and a population larger than 2599?
SQL: SELECT COUNT("Density (km 2 )") FROM "2-13764346-1" WHERE "Area (km 2 )" < 2200.2 AND "2002 population" > 2599.0;