What's the lowest bits precision when the total bits are less than 16?
CREATE TABLE "internal_representation" (
  "type" text,
  "sign" real,
  "exponent" real,
  "significand" real,
  "total_bits" real,
  "exponent_bias" real,
  "bits_precision" real,
  "number_of_decimal_digits" text
);
SELECT MIN("bits_precision") FROM "internal_representation" WHERE "total_bits"<16;