text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE table_11318462_29 (enrolment VARCHAR, in_competition_since VARCHAR, abbreviation VARCHAR)
  ### Question:
  What is the enrollment of STM which has been in competition since 1990?
  ### Answer:
  SELECT COUNT(enrolment) FROM table_11318462_29 WHERE in_competition_since = 1990 AND abbreviation = "STM"