For the sector of Gatunda how many entires are show for the August 15, 2012 population?
CREATE TABLE "list_of_nyagatare_sectors_by_population_" (
  "rank_in_nyagatare_sectors_2012" real,
  "sector" text,
  "area_in_sqkm" real,
  "population_august_15_2012" real,
  "population_august_15_2002" real,
  "population_change_2002_2012_pct" text,
  "population_density_2012_km_2" real
);
SELECT COUNT("population_august_15_2012") FROM "list_of_nyagatare_sectors_by_population_" WHERE "sector"='Gatunda';