You will be given a definition of a task first, then some input of the task.
This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Passage: The current 844 system was launched in January 1985. It put more emphasis on vocational subjects on the assumption that the new structure would enable school drop-outs at all levels either to be self-employed or to secure employment in the informal sector. In January 2003, the Government of Kenya announced the introduction of free primary education. As a result, primary school enrolment increased by about 70%. Secondary and tertiary education enrolment has not increased proportionally because payment is still required for attendance. In 2007 the government issued a statement declaring that from 2008, secondary education would be heavily subsidiszed, with the government footing all tuition fees. Question: When was the 8-4-4 system launched?
Output:
January 1985