Table:
Name | Country | Top rugby league level | Top union level | Top representation level | Rugby League Debut | Rugby Union Debut
Karmichael Hunt | New Zealand, Australia | National Rugby League | Top 14, Biarritz Olympique | Australia (RL) | 2004 | 2009
Chris Ashton | England | Super League | English Premiership | England (RL), England (RU) | 2005 | 2007
Lee Smith | England | Super League | English Premiership | England (RL), Great Britain (RL) | 2005 | 2009
Berrick Barnes | Australia | NRL | Super Rugby | Australia (RU) | 2005 | 2006
Nathan Blacklock | Australia | NRL/Super League | Super 12 | Australia (RL) | 1995 | 2003
Willie Carne | Australia | NRL | Super Rugby | Australia (RL) | 1990 | 1997
Brian Carney | Ireland | Super League/NRL | Celtic League | Great Britain (RL), Ireland (RU) | 1999 | 2007
Ryan Cross | Australia | NRL | Super Rugby | Australia (RU) | 1998 | 2007
Andy Farrell | England | Super League | English Premiership | Great Britain (RL), England (RU) | 1991 | 2005
Paul Franze | Australia | NRL | English Premiership | Australia (RL), London Irish(RU) | 2002 | 2006
Iestyn Harris | Wales | Super League | Heineken Cup, Celtic League | Great Britain (RL), Wales(RU) | 1993 | 2001
Sam Harris | Australia | NRL | Super Rugby | Australian Schoolboys (RU), City v. Country (RL) | 2003 | 2007
Wise Kativerata | Australia | NRL | Shute Shield | Australia Sevens (RU) | 2001 | 2004
Ben MacDougall | Australia | NRL | Celtic League | Scotland (RU) | 1998 | 2006
Stephen Myler | England | Super League | English Premiership | England Saxons (RU) | 2001 | 2006
Henry Paul | New Zealand | NRL | English Premiership | New Zealand (RL), England (RU) | 1993 | 2001
Jason Robinson | England | Super League | English Premiership | Great Britain (RL), England Captain and Lions (RU) | 1991 | 1996
Mat Rogers | Australia | NRL | Super Rugby | Australia (RL/RU) | 1995 | 2002
Wendell Sailor | Australia | NRL | Super Rugby | Australia (RL/RU) | 1993 | 2002
Clinton Schifcofske | Australia | NRL/Super League | Super Rugby | State of Origin {RL}/Australia A (RU) | 1996 | 2006
Timana Tahu | Australia | NRL | Super Rugby | Australia (RL/RU) | 1999 | 2008
Alan Tait | Scotland | Super League | Celtic League | Scotland (RL/RU), Great Britain (RL), British & Irish Lions (RU) | 1988 | 1996
Brad Thorn | Australia | NRL | Super Rugby | Australia (RL), New Zealand (RU) | 1994 | 2001
Lote Tuqiri | Australia | NRL | Super Rugby | Australia (RL/RU), Fiji (RL) | 1999 | 2003
Lesley Vainikolo | England | NRL, Super League | English Premiership | New Zealand (RL), England (RU) | 2002 | 2007
Andrew Walker | Australia | NRL | Super Rugby | Australia (RL/RU) | 1991 | 2000
Chev Walker | England | Super League | English Premiership | Great Britain (RL), England Saxons (RU) | 1999 | 2007
Barrie Jon Mather | England | RFL Championship/Super League | England RU | Great Britain (RL), England (RL), England (RU) | 1992 | 1998
Sonny Bill Williams | New Zealand | NRL | Top 14, Super Rugby | New Zealand Kiwis (RL), New Zealand All Blacks (RU) | 2004 | 2008
Craig Wing | Australia | NRL | Top League | Australian Kangaroos (RL), Japan (RU) | 2002 | 2010
Craig Gower | Australia | NRL | Top 14 | Australian Kangaroos (RL), Italy (RU) | 1996 | 2008
Mark Gasnier | Australia | NRL | Top 14 | Australian Kangaroos (RL) | 2000 | 2008
Shontayne Hape | New Zealand | NRL, Super League | English Premiership | New Zealand Kiwis (RL), England (RU) | 2003 | 2008
Fabrice Estebanez | France | Super League | Top 14 | France (RL), France (RU) | 2005 | 2010
Tasesa Lavea | New Zealand | NRL | Super rugby, Top 14 | New Zealand Kiwis (RL), Samoa (RU) | 2000 | 2010
Cooper Vuna | New Zealand | NRL | Super rugby | Tonga (RL), Australia (RU) | 2008 | 2012
Setaimata Sa | New Zealand, Samoa | NRL, Super League | English Premiership | New Zealand Kiwis (RL), Samoa (RL), Samoa (RU) | 2008 | 2012
Peter Ryan | Australia | NRL | Super Rugby | Queensland (RL) | 1989 | 2000

Question: what is the difference in league debut date between farrell and carne?
Answer: 1

Question: debuted for great britain (rl) in 1999 then for ireland (ru) in 2007
Answer: Brian Carney

Question: played for new zealand kiwis and all blacks
Answer: Sonny Bill Williams

Question: which country is listed the least?
Answer: Ireland

Question: what are the number of times super league appears under the top rugby league level column?
Answer: 15

Question: name a player that had at least 8 years between their debut in the league and in the union.
Answer: Andy Farrell

Question: played rugby for scotland before playing for british & irish lions
Answer: Alan Tait

Question: who made their league debut earlier, hunt or franze?
Answer: Franze

Question: whose name is listed before chris ashton?
Answer: Karmichael Hunt

Question: whose name is listed after lee smith?
Answer: Berrick Barnes