How many games had 2 goals scored?
CREATE TABLE "all_time_national_performance" (
  "nationality" text,
  "year" text,
  "games_played" real,
  "minutes_played" text,
  "goals_scored" text,
  "yellow_card" text,
  "red_card" text
);
SELECT SUM("games_played") FROM "all_time_national_performance" WHERE "goals_scored"='2';