How many different shareholders have 2.39 % of capital?
CREATE TABLE "scania_ab_publ_principal_shareholders" (
  "shareholder_name" text,
  "a_shares" real,
  "b_shares" real,
  "pct_of_capital" text,
  "pct_of_votes" text
);
SELECT COUNT("shareholder_name") FROM "scania_ab_publ_principal_shareholders" WHERE "pct_of_capital"='2.39';