Q: In this task, you are given a question and a context passage. You have to answer the question based on the given passage.
What is the starting age of the range for which Fox is #1?, Context: The show pushed Fox to become the number one U.S. TV network amongst adults 18–49, the key demographic coveted by advertisers, for an unprecedented eight consecutive years by 2012. Its success also helped lift the ratings of other shows that were scheduled around it such as House and Bones, and Idol, for years, had become Fox's strongest platform primetime television program for promoting eventual hit shows of the 2010s (of the same network) such as Glee and New Girl. The show, its creator Simon Fuller claimed, "saved Fox".
A:
18