1991-1992
Mark Robins – £800k (£1.5m)

1992-1993
Darren Ferguson – £250k (£450k)
Lee Martin – £350k (£630k)

1993-1994
Colin McKee – £265k (£470k)

1994-1995
Keith Gillespie – £1m (1.7m)
Richard Irving – £75k (£130k)
Ashley Westwood – £40k (£70k)

1995-1996
Gary Walsh – £250k (£420k)

1997-1998
Ben Thornley – £175k (£280k)
Grant Brebner – £300k (£475k)
John O’Kane – £400k (£635k)
Michael Appleton – £500k (£795k)
Jon Macken – £1.1m (£1.7m)
Colin Murdock – £100k (£160k)
Simon Davies – £150k (£240k)
Chris Casper – £300k (£475k)

1998-1999
Terry Cooke – £1m (£1.5m)
Phil Mulryne – £500k (£770k)

1999-2000
John Curtis – £1.5m (£2.3m)
Danny Higginbotham – £2m (£3m)

2000-2001
David Healey – £1.8m (£2.6m)
Mark Wilson – £1.5m (£2.2m)

2001-2002
Paul Rachubka – £200k (£290k)

2002-2003
David Beckham – £24.5m (£35m)

2003-2004
Nicky Butt – £2.5m (£3.5m)

2004-2005
Jonathan Spector – £500k (£670k)
Phil Neville – £3.5m (£4.7m)

2005-2006
Sylvain Ebanks-Blake – £200k (£260k)

2006-2007
David Jones – £1m (£1.3m)
Kieran Richardson – £5.5m (£7m)
Giuseppe Rossi – £6.7m (£8.5m)

2007-2008
Ryan Shawcross – £1m (£1.2m)
Phil Bardsley – £2m (£2.4m)
Gerard Pique – £6m (£7.2m)

2008-2009
Chris Eagles to Burnley – £1.25m (1.5m)
Lee Martin – £1.5m (£1.7m)
Frazier Campbell to Sunderland – £6m (£7m)
Richard Eckersley to Burnley – £500k (£580k)

2009-2010
Danny Simpson – £750k (£880k)

2010-2011
James Chester – £300k (£335k)
Craig Cathcart – £250k (£280k)
Wes Brown – £1.2m (£1.3m)
John O’Shea – £4.5m (£5m)
Joe Dudgeon – £300k (£335k)
Corry Evans – £500k (£560k)

2011-2012
Ravel Morrison – £1m
Danny Drinkwater – £750k
Darron Gibson – £2m
Matty James – £1m
Oliver Norwood – £400k

2012-2013
Robbie Brady – £2m
Joshua King – £1m
Oliver Norwood – £400k
Matty James – £1m

2013-2014
Scott Wootton – £1m

2014-2015
Danny Welbeck – £16m
Tom Lawrence – £1m

United have made around £140m from academy sales, which works out at around £6m a season for the past 24 years. In brackets are numbers using a historic inflation calculator. Of course, the inflation rate of football transfers is much larger than inflation in general, so the real figure would actually be much more.