Question: The Broncos are owned by the trust of Pat Bowlen, who served as the Broncos CEO from his purchase of the club during what years?
Context: Gregory McIntosh "Greg" Robinson (born October 9, 1951) is an American football coach and former player.  He is currently the defensive coordinator at San Jose State University, having assumed that role in February 2014.  Robinson served as the head football coach at Syracuse University from 2005 to 2008.  He has served as an assistant coach with several other college football programs and for three teams in the National Football League (NFL): the New York Jets from 1990 to 1994, the Denver Broncos from 1995 to 2000, and the Kansas City Chiefs from 2001 to 2003.  With the Broncos, Robinson was a member of two Super Bowl championship teams.  In more recent years he has served as the defensive coordinator at the University of Texas at Austin, in 2004 and for part of the 2013 season, and at the University of Michigan, from 2009 to 2010. The 2008 Denver Broncos season was the franchise's 39th season in the National Football League, the 49th overall and the 25th under the ownership of Pat Bowlen.  The Broncos improved from their 7–9 record from 2007, but failed to make the playoffs with an 8–8 record. The Denver Broncos are an American football team based in Denver, Colorado.  The Broncos compete in the National Football League (NFL) as a member club of the league's American Football Conference (AFC) West division.  The team began play in 1960 as a charter member of the American Football League (AFL) and joined the NFL as part of the merger in 1970.  The Broncos are owned by the Pat Bowlen trust.  The Broncos have played at Sports Authority Field at Mile High since , after previously playing at Mile High Stadium from 1960 to 2000. This article is a list of the current Denver Broncos broadcasters.  As of the start of the 2015 NFL season, the Broncos' flagship radio station is KOA 850 AM, a 50,000-watt station in Denver, Colorado owned by iHeartMedia.  Dave Logan is the play-by-play announcer; he starred for the Colorado Buffaloes before beginning his NFL career, spent mostly with the Cleveland Browns.  Ed McCaffrey is the color commentator.  Preseason games not selected for airing on national television were briefly on KCNC, channel 4, which is a CBS owned-and-operated station, as well as other CBS affiliates around the Rocky Mountain region, from 2004 through 2010.  The games had for years previously been on KUSA, channel 9, an NBC affiliate, and in 2011, the team went back to KUSA, which has higher news ratings. The Brisbane Broncos are an Australian professional rugby league football club based in the city of Brisbane, the capital of the state of Queensland.  Founded in 1988, the Broncos play in Australia's elite competition, the National Rugby League (NRL) premiership.  They have won five premierships, a Super League title and two World Club Challenges.  The Broncos have achieved four minor premierships during their 29 years in competition, making them the League's most successful club over the past three decades.  Until 2015 Brisbane had never been defeated in a grand final, and between 1991 and 2009 they never failed to qualify for the finals.  They are the most successful club since the National Rugby League began in 1998, winning a record three premierships in this era.  They are also one of the most successful clubs in the history of rugby league, having won 63% of their games since their induction in 1988, second only to Melbourne Storm with 64%. The 2013 Denver Broncos season was the franchise's 44th season in the National Football League and the 54th overall.  It also marked the 30th under the ownership of Pat Bowlen, the second with Peyton Manning as the team's starting quarterback and the third under head coach John Fox. Joe Woods (born June 25, 1970) is an American football coach who currently serves as the defensive coordinator of the Denver Broncos of the National Football League (NFL).  He served the 2014 season as defensive backs coach under Dennis Allen for the Oakland Raiders.  Woods joined the Broncos before the 2015 season as their defensive backs coach.  Woods was promoted to defensive coordinator for the Broncos prior to the 2017 season.  A coaching veteran of 24 years, Woods has instructed defensive backs in the NFL during the last 13 seasons with Tampa Bay (2004-05), Minnesota (2006-13), Oakland (2014), and Denver (2015-16). Patrick Dennis Bowlen (born February 18, 1944) is the majority owner of the Denver Broncos of the National Football League (NFL).  The Bowlen Family, including his two brothers John Bowlen and Bill Bowlen, and sister Marybeth Bowlen, purchased the team from Edgar Kaiser in 1984.  He served as the Broncos CEO from his purchase of the club in 1984 until July 2014, when he stepped down as Broncos' CEO due to the onset and progression of Alzheimer's disease. Carl Mathew Theodore "Ted" Sundquist II (born May 1, 1962) is an American football player, manager and commentator.  He spent sixteen years working in the National Football League for the Denver Broncos franchise.  Sundquist was hired in 1992 as the Player Personnel Assistant, and two years later promoted to Director of College Scouting.  In 2001, Pat Bowlen promoted Sundquist to General Manager. The history of the Denver Broncos American football club began when the team was chartered a member of the American Football League in 1960.  The Broncos have played in the city of Denver, Colorado throughout their entire history.  The Broncos did not win any titles as members of the AFL.  Since the 1970 AFL–NFL merger, the Broncos have won 15 division titles, and played in eight Super Bowls, following the 1977, 1986, 1987, 1989, 1997, 1998, 2013, and 2015 seasons.  They won Super Bowl XXXII, Super Bowl XXXIII and Super Bowl 50.  Their most famous player is former quarterback John Elway, starting quarterback in five Super Bowls and holder of many NFL records.  The Broncos currently play in the National Football League's AFC West division.  Their current leadership includes owner Pat Bowlen, CEO Joe Ellis, VP John Elway, head coach Vance Joseph, and quarterback, Trevor Siemian.
Answer: in 1984 until July 2014