Question: In what year did the head coach of the 1996 Florida Gators football team retire from coaching?

Context paragraphs:
1922 Florida Gators football team: The 1922 Florida Gators football team represented the Florida Gators of the University of Florida during the 1922 Southern Conference football season.  The season was law professor William G. Kline's third and last year as the head coach of the Florida Gators football team.  Kline's 1922 Florida Gators finished 7–2 overall, and 2–0 in their first year as members of the new Southern Conference, placing fifth of twenty-one teams in the conference standings.

1979 Florida Gators football team: The 1979 Florida Gators football team represented the University of Florida during the 1979 NCAA Division I-A football season.  The season was Charley Pell's first of six as the head coach of the Florida Gators football team.  Pell arrived in Gainesville with a new plan for building the Gators football program—new offensive and defensive schemes, new assistant coaches, a new attitude and new boosters fund-raising model to support the program and improve the stadium and training facilities.  Pell's plan would produce many on-the-field victories over the next five years, but his first campaign as the Gators coach produced the most losses in any single season in Gators football history, ending with a winless 0–10–1 overall record and a 0–6 record in the Southeastern Conference (SEC).  The team, which was plagued by injuries, placed dead last among ten SEC teams.  This was the last time until 2013 that Florida fielded a team with a losing record.

1980 Florida Gators football team: The 1980 Florida Gators football team represented the University of Florida during the 1980 NCAA Division I-A football season.  The season was the Florida Gators football team's second season under new head coach Charles B. "Charley" Pell, and marked a remarkable one-year turnaround for the Gators from their 0–10–1 record in 1979.  The winless 1979 season was the worst season in Gators history, and it was Pell's first campaign as the new head coach of the Gators, after the Gators' previous head coach, Doug Dickey, was fired in the aftermath of a 4–7 season in 1978.  Pell's 1980 Florida Gators posted an 8–4 overall record and a Southeastern Conference (SEC) record of 4–2, tying for fourth place in the ten-team SEC.  The Gators capped their season with a 35–20 bowl victory over the Maryland Terrapins in the Tangerine Bowl, marking the first time in the history of major college football that a winless team received a bowl bid the following season.  Linebacker David Little set the career record for tackles by a Gator and was consensus All-American.  Receiver Cris Collinsworth was first-team All-American.  The season features the famous "Run Lindsay Run" in the close loss to national champion Georgia.

1911 Florida Gators football team: The 1911 Florida Gators football team represented the University of Florida during the 1911 college football season.  The season was George Pyle's third as the head coach of the University of Florida football team.  The University of Florida adopted the "Florida Gators" nickname for its sports teams in 1911; the earlier Florida football teams were known simply as "Florida" or the "Orange and Blue."  Pyle's newly christened Florida Gators finished their sixth varsity football season 5–0–1—the first, and to date, the only undefeated season in the history of the Florida Gators football program.

1936 Florida Gators football team: The 1936 Florida Gators football team represented the University of Florida during the 1936 college football season.  The season was Josh Cody's first as the new head coach of the Florida Gators football team.  The highlights of the season included a 32–0 shutout of the Stetson College Hatters, a Homecoming game win over the Maryland Terrapins (7–6), and the Gators' only conference victory over the (18–7), but the season was also remembered for the Gators' three disappointing 0–7 shutout losses to the South Carolina Gamecocks, Kentucky Wildcats and Mississippi State Bulldogs.  Cody's 1936 Florida Gators finished 4–6 overall and 1–5 in the Southeastern Conference (SEC), placing tenth of thirteen SEC teams in the conference standings—Cody's worst SEC finish in four seasons as the Gators football coach.

1946 Florida Gators football team: The 1946 Florida Gators football team represented the University of Florida during the 1946 college football season.  The season was Raymond Wolf's first of four as the head coach of the Florida Gators football team.  Wolf's first Gators squad was composed mostly of college freshmen and returning World War II veterans who had not played football in several years.  The winless 0–9 season was also the worst win–loss record in the history of Gators football to date, surpassing the winless 0–5 record of the overmatched 1916 Gators.  Wolf's 1946 Florida Gators finished 0–5 in the Southeastern Conference (SEC), placing last of 12 SEC teams.  Despite the winless record, the Gators developed the seventh best passing attack in the nation, with end Broughton Williams leading the nation in receiving.  Harold Griffin led the nation in punt return average.

1950 Florida Gators football team: The 1950 Florida Gators football team represented the University of Florida during the 1950 college football season.  The season was Bob Woodruff's first of ten as the new head coach of the Florida Gators football team.  Woodruff was a former college football player and assistant for coach Robert Neyland's Tennessee Volunteers, who made his name as an up-and-coming young head coach leading the Baylor Bears for three seasons in the late 1940s.  Like Neyland, Woodruff emphasized stout defense, the kicking game and a ball control offense.  Perhaps ironically, in Woodruff's first season of 1950 the Gators offense, led by quarterback Haywood Sullivan and offensive coordinator Frank Broyles, posted record numbers.  Sullivan was the first sophomore in SEC history to throw for more than 1,000 yards in a season.  He set nine school records.  The highlights of the season included two Southeastern Conference (SEC) victories over the Auburn Tigers (27–7) and the thirteenth-ranked Vanderbilt Commodores (31–27)—the first season since 1940 in which the Gators won two or more SEC games.  The Gators' twentieth ranking after the Vanderbilt game marked their first-ever appearance in the top twenty of the weekly Associated Press Poll.  Woodruff's 1950 Florida Gators finished 5–5 overall and 2–4 in the SEC, placing tenth among twelve conference teams.

1996 Florida Gators football team: The 1996 Florida Gators football team represented the University of Florida in the sport of American football during the 1996 college football season.  The 1996 season was the team's seventh under head coach Steve Spurrier.  The Gators competed in the Southeastern Conference (SEC) and played their home games at Ben Hill Griffin Stadium on the university's Gainesville, Florida campus.

Steve Spurrier: Stephen Orr Spurrier (born April 20, 1945) is a former American football player and coach.  Spurrier served as the head coach of three college and two professional teams.  He was also a standout college football player, and spent a decade playing professionally in the National Football League (NFL).  Spurrier retired from coaching in 2015 and now serves as an ambassador and consultant for the University of Florida's athletic department.  He is nicknamed the "Head Ball Coach".

1978 Florida Gators football team: The 1978 Florida Gators football team represented the University of Florida during the 1978 NCAA Division I-A football season.  The season was Doug Dickey's ninth and last year as the head coach of the Florida Gators football team.  The 1978 Florida Gators finished with a 4–7 overall record and a 3–3 Southeastern Conference (SEC) record, tying for fourth among ten SEC teams.  After a disappointing 1977 season, Dickey had been under pressure to shake up his coaching staff, and he decided to abandon the run-oriented wishbone offense his teams had used for several seasons in favor of a more pro-style system.  Former Florida quarterback Steve Spurrier, who had lived in Gainesville since wrapping up his NFL career in 1976, was hired to run the offense in his first coaching job.

Supporting paragraphs: 1996 Florida Gators football team Steve Spurrier
Answer: 2015