What is the sum of Goals scored when there was less than 20 Games played?
CREATE TABLE "2_lyga_zone_west" (
  "position" real,
  "club" text,
  "games_played" real,
  "wins" real,
  "draws" real,
  "loses" real,
  "goals_scored" real,
  "goals_conceded" real,
  "points" real
);
SELECT SUM("goals_scored") FROM "2_lyga_zone_west" WHERE "games_played"<20;