Name the total number of median income for population 2006 for 365540
CREATE TABLE "table1_151994_1" (
  "district" text,
  "population_2006_est" real,
  "area_km" text,
  "density_km" text,
  "median_monthly_per_capita_labour_force_income_hkd" text
);
SELECT COUNT("median_monthly_per_capita_labour_force_income_hkd") FROM "table1_151994_1" WHERE "population_2006_est"=365540;