what's the years played with singles w-l of 3–2
CREATE TABLE "squad_members" (
  "player" text,
  "years_played" text,
  "total_w_l" text,
  "singles_w_l" text,
  "doubles_w_l" text
);
SELECT "years_played" FROM "squad_members" WHERE "singles_w_l"='3–2';