Name the total number of scoring average for money list rank of 174
CREATE TABLE "pga_tour_career_summary" (
  "year" real,
  "starts" real,
  "wins_majors" text,
  "2nd" real,
  "3rd" real,
  "earnings" real,
  "money_list_rank" text,
  "scoring_average" text
);
SELECT COUNT("scoring_average") FROM "pga_tour_career_summary" WHERE "money_list_rank"='174';