Question: How many seasons did Doug Gilmour play as after being named captain in during the 1994–95 Toronto Maple Leafs season?

Context paragraphs:
1966–67 Toronto Maple Leafs season: The 1966–67 Toronto Maple Leafs season was the 50th season of the Toronto NHL franchise, fortieth as the "Maple Leafs."  The Leafs finished third in the NHL with a record of 32–27–11 for 75 points to qualify for the playoffs.  Toronto defeated the first-place Chicago Black Hawks four games to two in the semi-finals before upending their arch-rival Montreal Canadiens in six games to win their thirteenth Stanley Cup in franchise history.  As of 2016, this is the last time that the Maple Leafs won the Stanley Cup, or even made it to the Finals.

1931–32 Toronto Maple Leafs season: The 1931–32 Toronto Maple Leafs season was Toronto's 15th season in the NHL.  The Maple Leafs were coming off their best regular season in team history in 1930–31, and the club set team records in wins and points, with 23 and 53 respectively, finishing in second place in the Canadian Division.  Toronto then won three playoff rounds to win the Stanley Cup, first as the Maple Leafs, and third in the history of the franchise.

1968–69 Toronto Maple Leafs season: The 1968–69 Toronto Maple Leafs season was the Toronto Maple Leafs 52nd season of the franchise, 42nd season as the Maple Leafs.  Although the Maple Leafs made the playoffs, they were swept in the quarter-finals by Boston, suffering two crushing defeats at Boston Garden.

James Reimer (ice hockey): James Reimer (born March 15, 1988) is a Canadian professional ice hockey goaltender for the Florida Panthers of the National Hockey League (NHL).  Reimer has also played for the Toronto Maple Leafs and San Jose Sharks.  He was selected by the Maple Leafs in the fourth round (99th overall) of the 2006 NHL Entry Draft.  He started playing minor hockey in his hometown when he was 12.  He played junior hockey with the Red Deer Rebels of the Western Hockey League (WHL), after being selected in the fifth round of the 2003 WHL Bantam Draft.  After turning professional, Reimer played with the South Carolina Stingrays and Reading Royals of the ECHL, as well as the Toronto Marlies of the American Hockey League.  Reimer was named the most valuable player of the ECHL playoffs, as the Stingrays won the Kelly Cup in 2009.  Reimer made his NHL debut with the Maple Leafs during the 2010–11 season and went on to replace Jean-Sébastien Giguère as the Maple Leafs' starting goaltender.  He plays for Canada internationally, and first represented his country at the 2011 World Championship.  In 2013, he had the best save percentage in Toronto Maple Leafs history with a then .918.

1980–81 Toronto Maple Leafs season: The 1980–81 Toronto Maple Leafs season was the Toronto Maple Leafs 64th season of the franchise, 54th season as the Maple Leafs.

1994–95 Toronto Maple Leafs season: Prior to the 1994–95 season, franchise player and fan favorite Wendel Clark was sent to the Quebec Nordiques in a blockbuster trade.  Clark, along with defenceman Sylvain Lefebvre and Toronto's second pick in the 1993 NHL Entry Draft, Landon Wilson, were traded to the Nordiques on June 28, 1994, in exchange for forward Mats Sundin, defenceman Garth Butcher and Quebec's first pick in the 1992 NHL Entry Draft, Todd Warriner.  In Clark's absence, the gritty and dependable veteran forward Doug Gilmour was named team captain.

Doug Gilmour: Douglas Robert Gilmour (born June 25, 1963) is a Canadian former professional ice hockey player and current general manager of the Kingston Frontenacs of the Ontario Hockey League (OHL).  He played 20 seasons in the National Hockey League (NHL) for the St. Louis Blues, Calgary Flames, Toronto Maple Leafs, New Jersey Devils, Chicago Blackhawks, Buffalo Sabres and Montreal Canadiens.  Gilmour was a seventh round selection, 134th overall, of the Blues at the 1982 NHL Entry Draft and recorded 1,414 points in 1,474 games in the NHL between 1983 and 2003.  A two-time All-Star, he was a member of Calgary's 1989 Stanley Cup championship team and won the Frank J. Selke Trophy as the NHL's best defensive forward in 1992–93.  Internationally, he represented Canada three times during his career and was a member of the nation's 1987 Canada Cup championship team.

1984–85 Toronto Maple Leafs season: The 1984–85 Toronto Maple Leafs season was the 68th season of the Toronto NHL franchise, 58th season as the Maple Leafs.  The Maple Leafs finished last in the Norris Division and in the entire NHL with a record of 20-52-8 for 48 points.

1981–82 Toronto Maple Leafs season: The 1981–82 Toronto Maple Leafs season was the Toronto Maple Leafs 65th season of the franchise, 55th season as the Maple Leafs.

1985–86 Toronto Maple Leafs season: The 1985–86 Toronto Maple Leafs season was the Toronto Maple Leafs 69th season of the franchise, 59th season as the Maple Leafs.

Supporting paragraphs: 1994–95 Toronto Maple Leafs season Doug Gilmour
Answer: 20 seasons