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_18143210_2 (number_of_seasons_in_liga_mx VARCHAR, first_season_of_current_spell_in_top_division VARCHAR)
### Question:
How many 'number of season in Liga MX' were played if the 'first season of current spell in top division' is in 1962-63?
### Answer:
SELECT number_of_seasons_in_liga_mx FROM table_18143210_2 WHERE first_season_of_current_spell_in_top_division = "1962-63"