Question: What year did former professional footballer who the Spanish Tax Decree was nicknamed for retire?

Context paragraphs:
John Gregson (footballer): John Gregson (born 17 May 1939) is an English former professional footballer who played as a winger for several clubs in the Football League.  Having to retire through injury, a testimonial match was played between a Cambridge 11 and a full strength Ipswich Town, managed by the late Sir Bobby Robson.

Harold Whalley: Harold Whalley (1923–1997) was an English former professional footballer who played in the Football League as a left winger.  He was born in Nelson and played for the Nelson under 18s winning the U-18s League 2.  However, he was not satisfied with Nelson and signed for Accrington Stanley.  He made his first team debut in a 1-0 loss to Northampton Town and only made 3 appearances in a year.  He then moved to non-league side Barnoldswick Town and instantly became a red hot favourite with the fans, netting 5 in his first five appearances but an injury ruled him out.  He only played until the next season, when he netted a hattrick that replenished Barnoldswick's survival hopes in that league.  They did stay in the division but Whalley decided to retire.  However, he did become head coach at Brierfield Central and guided them to a third successive title a well as the Morrison Cup.  He died, aged 73, at his home in Burnley.

Mark Goodlad: Mark Goodlad (born 9 September 1979) is a former professional footballer who played as a goalkeeper.  Leaving Nottingham Forest for Port Vale in 2000 (also playing for Scarborough on loan), he became the Vale's first choice keeper for a number of seasons until he was forced to retire due to injury in 2008.  During his time at Vale Park he was made Player of the Year in 2001–02, and also picked up a Football League Trophy winner's medal in 2001.  In all he made 250 competitive appearances in a ten years professional career.

David Beckham: David Robert Joseph Beckham, {'1': ", '2': ", '3': ", '4': "} ( ; born 2 May 1975) is an English former professional footballer.  He played for Manchester United, Preston North End, Real Madrid, Milan, LA Galaxy, Paris Saint-Germain, and the England national team for which he held the appearance record for an outfield player until 2016 when Wayne Rooney surpassed his total.  He is the first English player to win league titles in four countries: England, Spain, the United States and France.  He announced his retirement in May 2013 after a 20-year career, during which he won 19 major trophies.

Andy Scott (English footballer): Andrew Scott (born 2 August 1972) is the Head of Recruitment at English Championship side Brentford FC , previously an English former professional footballer whose clubs included Sheffield United, Brentford, Oxford United and Leyton Orient.  He was most recently the manager of Aldershot Town until January 2015.  He was manager of Rotherham United before that, until he was sacked in March 2012.  Before that he had a very successful spell as manager of Brentford FC, winning League 2 in his first full season in charge.  During his playing career, Scott was primarily a striker but also played on the left wing at times.  He was forced to retire in 2005 due to heart problems.

Beckham law: The "Beckham Law" (Royal Decree 687/2005) is a Spanish Tax Decree passed in June 2005.  The law gained its nickname after the footballer David Beckham became one of the first foreigners to take advantage of it.  However the law is aimed at all foreign workers (particularly the wealthier ones) living in Spain.  Upon application and acceptance by authorities, such individuals become liable for Spanish taxes based on their income in Spain income and assets for their part.

Paul Bradshaw (footballer, born 1953): Paul Bradshaw (born 2 October 1953) is an English former professional footballer who played as a winger.  He started his career with Burnley, where he spent more than six years prior to joining Sheffield Wednesday in 1976.  Bradshaw made a total of 91 senior appearances before being forced to retire from football in 1975 through injury.

Stan Horne: Stan Horne (born 17 December 1944) is an English former professional footballer who played as a midfielder.  Horne was the first black player in the history of his first three teams - Aston Villa, Manchester City and Fulham.  He also played for Chester, Denver Dynamos and Rochdale, making a total of 201 appearances in the Football League.  He was forced to retire from professional football due to high blood pressure.

Brian Redfearn: Brian Redfearn (born 1935) is a former professional footballer who played for Bradford Park Avenue, Blackburn Rovers, Darlington, Halifax Town , Bradford City and non-leagueBuxton.  He is the father of footballer Neil Redfearn.  In 1964 Redfearn was forced to retire from professional football due to an ankle injury.

Brendan O'Connell (footballer): Brendan John O'Connell (born 12 November 1966 in Lambeth) is a former professional footballer who made 451 appearances and scored 79 goals in the Football League playing as a midfielder for Portsmouth, Exeter City, Burnley, Huddersfield Town, Barnsley, Charlton Athletic and Wigan Athletic.  Forced to retire from playing because of a blood clot in his leg, O'Connell went on to coach Wigan Athletic's youth and reserve teams, played briefly for Rossendale United in the North West Counties League, and in 2003 became player/assistant manager of Northwich Victoria.

Supporting paragraphs: Beckham law David Beckham
Answer: 2013