Question: The Mincome experiment occurred during which number prime minister?

full_context: Document 1: 1969 White Paper: The 1969 White Paper (officially entitled Statement of the Government of Canada on Indian policy) was a Canadian policy paper proposal made in 1969 by Prime Minister Pierre Trudeau and his Minister of Indian Affairs, Jean Chrétien. The White Paper would abolish the "Indian Act", which the federal government viewed as discriminatory, dismantling the special legal relationship between Aboriginal peoples and the Canadian state in favour of equality, in accordance with Trudeau's vision of a "just society". The federal government proposed that by eliminating "Indian" as a distinct legal status, the resulting equality among all Canadians would help resolve the problems faced by Aboriginal peoples. After opposition from many Aboriginal leaders, the white paper was abandoned in 1970.
Document 2: Margaret Trudeau: Margaret Joan Trudeau ("née" Sinclair, formerly Kemper; born September 10, 1948) is a Canadian author, actress, photographer, former television talk show hostess, and social advocate for people with bipolar disorder. She is the former wife of Pierre Trudeau, 15th Prime Minister of Canada; and is the mother of Justin Trudeau, 23rd Prime Minister of Canada, and his brothers Alexandre and Michel. In 2013, Trudeau was awarded an honorary degree of Doctor of Laws from the University of Western Ontario in recognition of her work to combat mental illness.
Document 3: Spouse of the Prime Minister of Canada: The spouse of the Prime Minister of Canada is the wife or husband of the Prime Minister of Canada. Sophie Grégoire-Trudeau is the wife of the current prime minister, Justin Trudeau. To date, 18 women have been the wives of the Prime Minister of Canada; Kim Campbell, the only female prime minister to date, was unmarried during her time in office. The spouse of the prime minister participates alongside the prime minister in various ceremonial, diplomatic, or partisan activities and may pursue philanthropic or charitable endeavours on their own, although the spouses to date have varied in how actively they sought or accepted the public spotlight.
Document 4: Ralph Klein: Ralph Phillip Klein, {'1': ", '2': ", '3': ", '4': "} (November 1, 1942 March 29, 2013) was a Canadian politician who served as the 12th Premier of Alberta and leader of the Progressive Conservative Association of Alberta from 1992 until his retirement in 2006. Klein's tenure as premier ended when the Alberta Progressive Conservatives' new leader, Ed Stelmach, assumed office December 14, 2006, exactly fourteen years after Klein first became Premier. His nickname was "King Ralph", a reference to his political longevity and his management style. Klein continued the PC dynasty, winning four consecutive majority governments.
Document 5: Mincome: Mincome was an experimental Canadian guaranteed annual income project that was held in Manitoba, during the 1970s. The project, funded jointly by the Manitoba provincial government and the Canadian federal government under Prime Minister Pierre Trudeau. It was launched with a news release on February 22, 1974, under the New Democratic Party government of Edward Schreyer, and was closed down in 1979 under the Progressive Conservative government of Sterling Lyon and the federal Progressive Conservative Party of Joe Clark. The purpose of this experiment was to assess the social impact of a guaranteed, unconditional annual income, including whether a program of this nature would cause disincentives to work for the recipients and how great such a disincentive would be.
Document 6: Brian Mulroney: Martin Brian Mulroney (born March 20, 1939) is a Canadian politician who served as the 18th Prime Minister of Canada from September 17, 1984, to June 25, 1993. His tenure as prime minister was marked by the introduction of major economic reforms, such as the Canada-U.S. Free Trade Agreement and the Goods and Services Tax, and the rejection of constitutional reforms such as the Meech Lake Accord and the Charlottetown Accord. Prior to his political career, he was a prominent lawyer and businessman in Montreal.
Document 7: Charles-Émile Trudeau: Joseph Charles-Émile "Charley" Trudeau (July 5, 1887 – April 10, 1935) was a successful French Canadian entrepreneur, father of Pierre Trudeau, 15th Prime Minister of Canada, and grandfather of Justin Trudeau, 23rd and current Prime Minister of Canada.
Document 8: Pradhan Mantri Garib Kalyan Yojana: "Pradhan Mantri Garib Kalyan Yojana", 2016 (PMGKY) (English, Prime Minister's Poor welfare scheme) is an amnesty scheme launched by the Narendra Modi led Government of India in December 2016 on the lines of the Income declaration scheme, 2016 (IDS) launched earlier in the year. A part of the Taxation Laws (Second Amendment) Act, 2016, the scheme provides an opportunity to declare unaccounted wealth and black money in a confidential manner and avoid prosecution after paying a fine of 50% on the undisclosed income. An additional 25% of the undisclosed income is invested in the scheme which can be refunded after four years, without any interest.
Document 9: Mackenzie Valley Pipeline Inquiry: The Mackenzie Valley Pipeline Inquiry, also known as the Berger Inquiry after its head Justice Thomas Berger, was commissioned by the Government of Canada on March 21, 1974 to investigate the social, environmental, and economic impact of a proposed gas pipeline that would run through the Yukon and the Mackenzie River Valley of the Northwest Territories. This proposed pipeline became known as the Mackenzie Valley Pipeline.
Document 10: Robert Menzies: Sir Robert Gordon Menzies, {'1': ", '2': ", '3': ", '4': "} (20 December 189415 May 1978), was the Prime Minister of Australia from 1939 to 1941 and again from 1949 to 1966. He is Australia's longest-serving prime minister, serving over 18 years in total.
Document 11: Alexandre Trudeau: Alexandre Emmanuel "Sacha" Trudeau (born December 25, 1973) is a Canadian filmmaker, journalist and author of "Barbarian Lost". He is the second son of Canada's former Prime Minister Pierre Trudeau, and Margaret Trudeau, and the younger brother of Canada's current Prime Minister Justin Trudeau.
Document 12: Justin Trudeau: Justin Pierre James Trudeau (born December 25, 1971) is a Canadian politician. He is the 23rd and current Prime Minister of Canada and leader of the Liberal Party. The second youngest prime minister after Joe Clark, he is also, as the eldest son of former Prime Minister Pierre Trudeau, the first to be related to a previous holder of the post.
Document 13: List of Prime Ministers of Canada: The Prime Minister of Canada is an official who serves as the primary minister of the Crown, chair of the Cabinet, and thus head of government of Canada. Officially, the prime minister is appointed by the Governor General of Canada, but by constitutional convention, the prime minister must have the confidence of the elected House of Commons. Normally, this is the leader of the party caucus with the greatest number of seats in the house. But, if that leader lacks support of the majority, the governor general can appoint another leader who has that support or may dissolve parliament and call a new election. By constitutional convention, a prime minister holds a seat in parliament and, since the early 20th century, this has more specifically meant the House of Commons.
Document 14: Pradhan Mantri Jan Dhan Yojana: Pradhan Mantri Jan-Dhan Yojana(P.M.J.D.Y), Prime Minister's People Money Scheme is India's National Mission for Financial Inclusion to ensure access to financial services, namely Banking Savings & Deposit Accounts, Remittance, Credit, Insurance, Pension in an affordable manner. This financial inclusion campaign was launched by the Prime Minister of India Narendra Modi on 28 August 2014 He had announced this scheme on his first Independence Day speech on 15 August 2014.
Document 15: Pierre Trudeau: Joseph Philippe Pierre Yves Elliott Trudeau, ( ; ] ; October 18, 1919 – September 28, 2000), often referred to by the initials PET, was a Canadian statesman who served as the 15th Prime Minister of Canada (1968–1979 and 1980–1984). He is the 3rd longest-serving Prime Minister in Canadian history (behind William Lyon Mackenzie King and John A. Macdonald), having served for 15 years, 164 days.
ground_truth: 15th