Instructions: This task involves creating answers to complex questions, from a given passage. Answering these questions, typically involve understanding multiple sentences. Make sure that your answer has the same type as the "answer type" mentioned in input. The provided "answer type" can be of any of the following types: "span", "date", "number". A "span" answer is a continuous phrase taken directly from the passage or question. You can directly copy-paste the text from the passage or the question for span type answers. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words. A "number" type answer can include a digit specifying an actual value. For "date" type answers, use DD MM YYYY format e.g. 11 Jan 1992. If full date is not available in the passage you can write partial date such as 1992 or Jan 1992. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words.
Input: Passage: TEN-10 produces a 60-minute local news program on weeknights from its studios at Pyrmont. Ten Eyewitness News Sydney is presented by Sandra Sully with sport presenter Matt Burke, weather presenter Tim Bailey and traffic reporter Vic Lorusso. The 5pm bulletin was presented for almost eleven years by Ron Wilson and Jessica Rowe, between 1996 and 2005, when Rowe moved to present the Nine Network's Today. She was replaced by the network's US correspondent Deborah Knight from 2006. Wilson anchored the nightly Sydney news until January 2009 when he became a presenter of the national Early News and was replaced by Bill Woods. Knight was replaced by Sully in October 2011 following the axing of the network's long-running late night news program, as a result with Knight's decision to move to the Nine Network. Sully became sole anchor after Bill Woods' departure on 30 November 2012, following the network's decision not to renew his contract. Fill-in presenters include Natarsha Belling , Scott Mackinnon and Amanda Duval or Amanda Hart .
Question: How many years did these events span?
Answer type: Number
Output:
16.