Input: The effectiveness of heat-seeking missiles was only 7% early in the Vietnam War, but improved to approximately 15%40% over the course of the war. The AIM-4 Falcon used by the USAF had kill rates of approximately 7% and was considered a failure. The AIM-9B Sidewinder introduced later achieved 15% kill rates, and the further improved AIM-9D and J models reached 19%. The AIM-9G used in the last year of the Vietnam air war achieved 40%. Israel used almost totally guns in the 1967 Six-Day War, achieving 60 kills and 10 losses. However, Israel made much more use of steadily improving heat-seeking missiles in the 1973 Yom Kippur War. In this extensive conflict Israel scored 171 of out of 261 total kills with heat-seeking missiles (65.5%), 5 kills with radar guided missiles (1.9%), and 85 kills with guns (32.6%). The AIM-9L Sidewinder scored 19 kills out of 26 fired missiles (73%) in the 1982 Falklands War. But, in a conflict against opponents using thermal countermeasures, the United States only scored 11 kills out of 48 fired (Pk 23%) with the follow-on AIM-9M in the Gulf War.

Question: How many years after the Six-Day War did the Yom Kippur War take place?

Input: During the 1960s, the UNC campus was the location of significant political protest. Prior to the passage of the Civil Rights Act of 1964, protests about local racial segregation which began quietly in Franklin Street restaurants led to mass demonstrations and disturbance. The climate of civil unrest prompted the 1963 Speaker Ban Law prohibiting speeches by communists on state campuses in North Carolina. The law was immediately criticized by University Chancellor William Brantley Aycock and University President William Friday, but was not reviewed by the North Carolina General Assembly until 1965. Small amendments to allow "infrequent" visits failed to placate the student body, especially when the university's board of trustees overruled new Chancellor Paul Frederick Sharp's decision to allow speaking invitations to Marxist speaker Herbert Aptheker and civil liberties activist Frank Wilkinson; however, the two speakers came to Chapel Hill anyway. Wilkinson spoke off campus, while more than 1,500 students viewed Aptheker's speech across a low campus wall at the edge of campus, christened "Dan Moore's Wall" by The Daily Tar Heel for Governor Dan K. Moore. A group of UNC students along with Aptheker and Williamson filed a lawsuit in U.S. federal court, and on February 20, 1968, the Speaker Ban Law was struck down. In 1968, only a year after its schools became fully integrated, Chapel Hill became the first predominantly white municipality in the country to elect an African American mayor, Howard Lee. Lee served from 1969 until 1975 and, among other things, helped establish Chapel Hill Transit, the town's bus system.

Question: How many years did it take to officially get the Speaker Ban Law struck down?

Input: At the Battle of Nesjar, in 1016, Olaf Haraldsson won the kingdom of Norway from the Danes. It was at some time after Eirkr left for England, and on the death of Svein while retreating to Sweden, maybe intent on returning to Norway with reinforcements, that Erikr's son Hakon went to join his father and support Cnut in England, too. Cnut's brother Harald may have been at Cnut's coronation, in 1016, returning to Denmark as its king, with part of the fleet, at some point thereafter. It is only certain, though, that there was an entry of his name, alongside Cnut's, in confraternity with Christ Church, Canterbury, in 1018. This is not conclusive, though, for the entry may have been made in Harald's absence, perhaps by the hand of Cnut himself, which means that, while it is usually thought that Harald died in 1018, it is unsure whether he was still alive at this point. Entry of his brother's name in the Canterbury codex may have been Cnut's attempt to make his vengeance for Harald's murder good with the Church. This may have been just a gesture for a soul to be under the protection of God. There is evidence Cnut was in battle with pirates in 1018, with his destruction of the crews of thirty ships, although it is unknown if this was off the English or Danish shores. He himself mentions troubles in his 1019 letter , written as the King of England and Denmark. These events can be seen, with plausibility, to be in connection with the death of Harald. Cnut says he dealt with dissenters to ensure Denmark was free to assist England:

Question: Which happened first, the coronation of Cnut or the death of Cnut's brother Harald?

Input: After the Dissolution of the Soviet Union, Kazakhstan became an independent nation in December 1991. France and Kazakhstan established diplomatic relations on 25 January 1992, with France becoming the first European nation to recognize Kazakhstan. In September 1993, French President Francois Mitterrand paid an official visit to Kazakhstan. In June 2008, both nations signed a strategic partnership agreement and in 2010, both nations created a joint presidential commission establishing yearly visits by both heads of state and for yearly consultations between ministers of foreign affairs of both nations beginning in 2011. In 2008, France transferred its embassy from the former capital of Almaty to the country's new capital of Astana. Kazakhstan and France boosted their relations by signing a strategic partnership in June 2008. In 2010, the two countries created a Franco-Kazakh Presidential Commission, which takes the form of an annual meeting between the two Heads of State. The Alliance Francaise operates two centers in Kazakhstan, in Astana and in Almaty. In 2017, both nations celebrated 25 years of diplomatic relations. That same year, France participated in the Expo 2017 being held in Astana.

Question:
How many years after France became the the first European nation to recognize Kazakhstan did a French President officially visit Kazakhstan?