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_19312274_2 (total VARCHAR, last_current_driver_s_ VARCHAR)
  ### Question:
  how many total where last/current driver(s) is narain karthikeyan ( 2010 )
  ### Answer:
  SELECT COUNT(total) FROM table_19312274_2 WHERE last_current_driver_s_ = "Narain Karthikeyan ( 2010 )"