What are the number of storms where fog is lower than 74, and sunshine is 2 668?
CREATE TABLE "comparison_of_meteorological_data_at_for" (
  "sunshine_hrs_year" text,
  "rain_mm_year" text,
  "snow_days_year" real,
  "storms_days_year" real,
  "fog_days_year" real
);
SELECT COUNT("storms_days_year") FROM "comparison_of_meteorological_data_at_for" WHERE "fog_days_year"<74 AND "sunshine_hrs_year"='2 668';