What is the total number of league goals for Simon Charlton?
CREATE TABLE "appearances_and_goals" (
  "name" text,
  "position" text,
  "league_apps" text,
  "league_goals" real,
  "fa_cup_apps" text,
  "fa_cup_goals" real,
  "league_cup_apps" text,
  "league_cup_goals" real,
  "flt_apps" text,
  "flt_goals" real,
  "total_apps" text,
  "total_goals" real
);
SELECT COUNT("league_goals") FROM "appearances_and_goals" WHERE "name"='simon charlton';