Question: How many decades did Pakistani politician and subject of biographical film Kaptaan: The Making of a Legend play international cricket?

Context paragraphs:
Kaptaan: The Making of a Legend: Kaptaan: The Making of a Legend (Urdu: ‎ ) is a Pakistani biographical film about the life of Pakistani politician, philanthropist and former cricketer Imran Khan.  The title is Urdu for 'Captain' indicating his captaincy of the Pakistan cricket team which led them to victory in the 1992 cricket world cup.

World Cricket League: The ICC World Cricket League is a series of international one-day cricket tournaments for national teams without Test status (of Associate or Affiliate status), administered by the International Cricket Council.  All associate and affiliate members of the ICC are eligible to compete in the league system, which features a promotion and relegation structure between divisions.  The league system has two main aims: to provide a qualification system for the World Cup that can be accessed by all associate and affiliate members, and as an opportunity for these sides to play international one-day matches against teams of similar standards.

Darren Sammy: Darren Julius Garvey Sammy, OBE (born 20 December 1983) is a Saint Lucian cricketer who plays international cricket for the West Indies.  He is a two time T20 World Cup winning captain.  He plays as a right-handed batsman and a fast-medium bowler.  On making his One Day International (ODI) debut against Bangladesh in 2004, Sammy became the first person from the island of St. Lucia to play international cricket.  Three years later he made his Test debut against England, taking 7/66 which were the best bowling figures for a West Indian in his first Test since Alf Valentine in 1950.  Sammy was appointed West Indies captain in October 2010.  He scored his maiden Test century in May 2012 during a match against England.

List of international cricketers from Jamaica: The island nation of Jamaica is one of the regions which makes up the West Indies cricket team.  It has produced international cricketers in all forms of the game—Tests, One Day Internationals (ODIs) and Twenty20 Internationals (T20Is).  Freddie Martin and Karl Nunes became the first Jamaicans to play international cricket when they appeared in the West Indies's inaugural Test match, against England in 1928.  Nunes captained the West Indies during this match, the first of seven Jamaicans to do so.

ICC Americas Championship: The ICC Americas Championship is a one-day cricket tournament organised by ICC Americas for non-Test national cricket teams in the Americas affiliated with the International Cricket Council.  As well as providing the opportunity for national teams to play international matches against teams of a similar standard, it also provides qualification into the ICC World Cricket League.

List of Pakistan national cricket captains: This is a list of Pakistani national cricket captains who have represented the Pakistani national cricket team in international cricket at a professional level.  Pakistan became an official member of the Imperial Cricket Conference (now the International Cricket Council) on 28 July 1953.

Demobilised Officers cricket team: The Demobilised Officers cricket team was a cricket team formed of first-class cricketers who had fought in the First World War and following its conclusion had been demobilised.  The team played a single first-class match against a combined Army and Navy cricket team at Lord's in 1919.  The eleven players who represented the team in the match were Richard Twining (later President of the Marylebone Cricket Club and Middlesex), Mordaunt Doll, Harry Altham, John Morrison, Gilbert Ashton, Claude Burton, Frank Mann, Stanley Saville, Eric Martin, Sidney Bollon and Wilfrid Lord.  All except Bollon had previously played first-class cricket, with Mann the only member of the team to later play international cricket, making five Test appearances for England.  The Army and Navy batted first, making 231 all out, with Bollon taking five wickets with figures of 5/59, while Ashton backed him up with 4/95.  Responding in their first-innings, the Demobilised Officers made 212 all out, with Ashton top scoring in the innings with 95.  The Army and Navy reached 124/2 in their second-innings, at which point the match was declared a draw.  The team played no further matches after this.

Karachi Education Board cricket team: The Karachi Education Board cricket team was a first-class cricket team based in Karachi, Pakistan.  The team played a single first-class match in the Ayub Trophy in November 1964 against Hyderabad at the National Stadium, Karachi.  The team won the toss and batted first, making 253 all out, during which Akhtar Sadiq top–scored with 53.  Hyderabad were then dismissed for 255 in their first-innings, with Vakil Tatari claiming the best bowling figures with 4/65.  Responding in their second-innings, the team made 129/4 declared, with Aftab Ahmed top-scoring in the innings with 60.  Hyderabad then reached 61/5 in their second-innings, with Tatari and Sadiq each taking two wickets.  At this point the match was declared a draw.  Of the starting eleven, only Tariq Javed would go on to play international cricket, with him playing in One Day Internationals for Canada.

Cricket in the United Arab Emirates: Cricket is a popular sport in the United Arab Emirates.  The country currently hosts the matches of Pakistani cricket team due to the Lahore attacks on the Sri Lankan cricket team.  UAE has participated in various competition by International Cricket Council (ICC) and is an associate member of the ICC.  The country will also host few games for UAE cricket team (Home Leg) and Afghanistan cricket team at Sharjah Cricket Association Stadium, Sharjah in 2011–13 ICC Intercontinental Cup and 2011–13 ICC Intercontinental Cup One-Day.  The 2012 ICC World Twenty20 Qualifier is also scheduled in the United Arab Emirates at Dubai International Cricket Stadium, Dubai, ICC Global Cricket Academy (Oval 2), Dubai and Sharjah Cricket Stadium, Sharjah.  Currently Sheikh Zayed Stadium in Abu Dhabi, Dubai Sports City Cricket Stadium in Dubai and Sharjah Cricket Association Stadium in Sharjah are used by Pakistan for their international cricket matches.

Imran Khan: Imran Khan Niazi PP, HI (Urdu: ‎ ) is a Pakistani politician, former cricketer and philanthropist who leads the Pakistan Movement of Justice and serves as a member of the National Assembly.  Prior to entering politics, Khan played international cricket for two decades in the late twentieth century.

Supporting paragraphs: Kaptaan: The Making of a Legend Imran Khan
Answer: two