<P> Duke has been ranked as the #1 team in the nation 235 weeks in their history . </P> <P> Former Duke stars such as Alaa Abdelnaby, Johnny Dawkins, Cherokee Parks, Bobby Hurley, Antonio Lang, Roshown McLeod, William Avery, Trajan Langdon, Grant Hill, Danny Ferry, Christian Laettner, Brian Davis, Elton Brand, Shane Battier, Carlos Boozer, Chris Duhon, Mike Dunleavy, Dahntay Jones, Daniel Ewing, J.J. Redick, Shavlik Randolph, Shelden Williams, Corey Maggette, Luol Deng, Josh McRoberts, Gerald Henderson, Austin Rivers, Lance Thomas, Kyle Singler, Miles Plumlee, Mason Plumlee, Nolan Smith, Jason Williams, Jabari Parker, Rodney Hood and Kyrie Irving have gone on to play in the NBA . Many of Krzyzewski's assistants and former players, such as Tommy Amaker (Seton Hall, University of Michigan and Harvard), Bob Bender (Illinois State University and University of Washington), Chuck Swenson at William & Mary, Mike Brey (Delaware and Notre Dame), Jeff Capel (VCU and Oklahoma), Chris Collins (Northwestern), Johnny Dawkins (Stanford), Quin Snyder (Missouri, Utah Jazz), and Steve Wojciechowski (Marquette) have become head basketball coaches at major universities and the NBA, while Pete Gaudet is now the head coach of the India women's national basketball team . </P> <Table> <Tr> <Th> Season </Th> <Th> Coach </Th> <Th> Overall </Th> <Th> Conference </Th> <Th> Standing </Th> <Th> Postseason </Th> </Tr> <Tr> <Td_colspan="9"> Mike Krzyzewski (Atlantic Coast Conference) (1980--Present) </Td> </Tr> <Tr> <Td> 1980--81 </Td> <Td> Mike Krzyzewski </Td> <Td> 17--13 </Td> <Td> 6--8 </Td> <Td> T - 5th </Td> <Td> NIT Quarterfinals </Td> </Tr> <Tr> <Td> 1981--82 </Td> <Td> Mike Krzyzewski </Td> <Td> 10--17 </Td> <Td> 4--10 </Td> <Td> T - 6th </Td> <Td>--</Td> </Tr> <Tr> <Td> 1982--83 </Td> <Td> Mike Krzyzewski </Td> <Td> 11--17 </Td> <Td> 3--11 </Td> <Td> 7th </Td> <Td>--</Td> </Tr> <Tr> <Td> 1983--84 </Td> <Td> Mike Krzyzewski </Td> <Td> 24--10 </Td> <Td> 7--7 </Td> <Td> T - 3rd </Td> <Td> NCAA Round of 32 </Td> </Tr> <Tr> <Td> 1984--85 </Td> <Td> Mike Krzyzewski </Td> <Td> 23--8 </Td> <Td> 8--6 </Td> <Td> T - 4th </Td> <Td> NCAA Round of 32 </Td> </Tr> <Tr> <Td> 1985--86 </Td> <Td> Mike Krzyzewski </Td> <Td> 37--3 </Td> <Td> 12--2 </Td> <Td> 1st </Td> <Td> NCAA Finalist </Td> </Tr> <Tr> <Td> 1986--87 </Td> <Td> Mike Krzyzewski </Td> <Td> 24--9 </Td> <Td> 9--5 </Td> <Td> 3rd </Td> <Td> NCAA Sweet Sixteen </Td> </Tr> <Tr> <Td> 1987--88 </Td> <Td> Mike Krzyzewski </Td> <Td> 28--7 </Td> <Td> 9--5 </Td> <Td> 3rd </Td> <Td> NCAA Final Four </Td> </Tr> <Tr> <Td> 1988--89 </Td> <Td> Mike Krzyzewski </Td> <Td> 28--8 </Td> <Td> 9--5 </Td> <Td> T - 2nd </Td> <Td> NCAA Final Four </Td> </Tr> <Tr> <Td> 1989--90 </Td> <Td> Mike Krzyzewski </Td> <Td> 29--9 </Td> <Td> 9--5 </Td> <Td> T - 2nd </Td> <Td> NCAA Finalist </Td> </Tr> <Tr> <Td> 1990--91 </Td> <Td> Mike Krzyzewski </Td> <Td> 32--7 </Td> <Td> 11--3 </Td> <Td> 1st </Td> <Td> National Champions </Td> </Tr> <Tr> <Td> 1991--92 </Td> <Td> Mike Krzyzewski </Td> <Td> 34--2 </Td> <Td> 14--2 </Td> <Td> 1st </Td> <Td> National Champions </Td> </Tr> <Tr> <Td> 1992--93 </Td> <Td> Mike Krzyzewski </Td> <Td> 24--8 </Td> <Td> 10--6 </Td> <Td> T - 3rd </Td> <Td> NCAA Round of 32 </Td> </Tr> <Tr> <Td> 1993--94 </Td> <Td> Mike Krzyzewski </Td> <Td> 28--6 </Td> <Td> 12--4 </Td> <Td> 1st </Td> <Td> NCAA Finalist </Td> </Tr> <Tr> <Td> 1994--95 </Td> <Td> Mike Krzyzewski Pete Gaudet </Td> <Td> Mike K. 9--3 Pete G. 4--15 </Td> <Td> 2--14 </Td> <Td> 9th </Td> <Td>--</Td> </Tr> <Tr> <Td> 1995--96 </Td> <Td> Mike Krzyzewski </Td> <Td> 18--13 </Td> <Td> 8--8 </Td> <Td> T - 4th </Td> <Td> NCAA Round of 64 </Td> </Tr> <Tr> <Td> 1996--97 </Td> <Td> Mike Krzyzewski </Td> <Td> 24--9 </Td> <Td> 12--4 </Td> <Td> 1st </Td> <Td> NCAA Round of 32 </Td> </Tr> <Tr> <Td> 1997--98 </Td> <Td> Mike Krzyzewski </Td> <Td> 32--4 </Td> <Td> 15--1 </Td> <Td> 1st </Td> <Td> NCAA Elite Eight </Td> </Tr> <Tr> <Td> 1998--99 </Td> <Td> Mike Krzyzewski </Td> <Td> 37--2 </Td> <Td> 16--0 </Td> <Td> 1st </Td> <Td> NCAA Finalist </Td> </Tr> <Tr> <Td> 1999--2000 </Td> <Td> Mike Krzyzewski </Td> <Td> 29--5 </Td> <Td> 15--1 </Td> <Td> 1st </Td> <Td> NCAA Sweet Sixteen </Td> </Tr> <Tr> <Td> 2000--01 </Td> <Td> Mike Krzyzewski </Td> <Td> 35--4 </Td> <Td> 13--3 </Td> <Td> T - 1st </Td> <Td> National Champions </Td> </Tr> <Tr> <Td> 2001--02 </Td> <Td> Mike Krzyzewski </Td> <Td> 31--4 </Td> <Td> 13--3 </Td> <Td> 2nd </Td> <Td> NCAA Sweet Sixteen </Td> </Tr> <Tr> <Td> 2002--03 </Td> <Td> Mike Krzyzewski </Td> <Td> 26--7 </Td> <Td> 11--5 </Td> <Td> T - 3rd </Td> <Td> NCAA Sweet Sixteen </Td> </Tr> <Tr> <Td> 2003--04 </Td> <Td> Mike Krzyzewski </Td> <Td> 31--6 </Td> <Td> 13--3 </Td> <Td> 1st </Td> <Td> NCAA Final Four </Td> </Tr> <Tr> <Td> 2004--05 </Td> <Td> Mike Krzyzewski </Td> <Td> 27--6 </Td> <Td> 11--5 </Td> <Td> 3rd </Td> <Td> NCAA Sweet Sixteen </Td> </Tr> <Tr> <Td> 2005--06 </Td> <Td> Mike Krzyzewski </Td> <Td> 32--4 </Td> <Td> 14--2 </Td> <Td> 1st </Td> <Td> NCAA Sweet Sixteen </Td> </Tr> <Tr> <Td> 2006--07 </Td> <Td> Mike Krzyzewski </Td> <Td> 22--11 </Td> <Td> 8--8 </Td> <Td> T - 6th </Td> <Td> NCAA Round of 64 </Td> </Tr> <Tr> <Td> 2007--08 </Td> <Td> Mike Krzyzewski </Td> <Td> 28--6 </Td> <Td> 13--3 </Td> <Td> 2nd </Td> <Td> NCAA Round of 32 </Td> </Tr> <Tr> <Td> 2008--09 </Td> <Td> Mike Krzyzewski </Td> <Td> 30--7 </Td> <Td> 11--5 </Td> <Td> T - 2nd </Td> <Td> NCAA Sweet Sixteen </Td> </Tr> <Tr> <Td> 2009--10 </Td> <Td> Mike Krzyzewski </Td> <Td> 35--5 </Td> <Td> 13--3 </Td> <Td> T - 1st </Td> <Td> National Champions </Td> </Tr> <Tr> <Td> 2010--11 </Td> <Td> Mike Krzyzewski </Td> <Td> 32--5 </Td> <Td> 13--3 </Td> <Td> 2nd </Td> <Td> NCAA Sweet Sixteen </Td> </Tr> <Tr> <Td> 2011--12 </Td> <Td> Mike Krzyzewski </Td> <Td> 27--7 </Td> <Td> 13--3 </Td> <Td> 2nd </Td> <Td> NCAA Round of 64 </Td> </Tr> <Tr> <Td> 2012--13 </Td> <Td> Mike Krzyzewski </Td> <Td> 30--6 </Td> <Td> 14--4 </Td> <Td> 2nd </Td> <Td> NCAA Elite Eight </Td> </Tr> <Tr> <Td> 2013--14 </Td> <Td> Mike Krzyzewski </Td> <Td> 26--9 </Td> <Td> 13--5 </Td> <Td> 3rd </Td> <Td> NCAA Round of 64 </Td> </Tr> <Tr> <Td> 2014--15 </Td> <Td> Mike Krzyzewski </Td> <Td> 35--4 </Td> <Td> 15--3 </Td> <Td> 2nd </Td> <Td> National Champions </Td> </Tr> <Tr> <Td> 2015--16 </Td> <Td> Mike Krzyzewski </Td> <Td> 25--11 </Td> <Td> 11--7 </Td> <Td> T - 5th </Td> <Td> NCAA Sweet Sixteen </Td> </Tr> <Tr> <Td> 2016--17 </Td> <Td> Mike Krzyzewski </Td> <Td> 28--9 </Td> <Td> 11--7 </Td> <Td> 5th </Td> <Td> NCAA Round of 32 </Td> </Tr> <Tr> <Td> 2017--18 </Td> <Td> Mike Krzyzewski </Td> <Td> 29--8 </Td> <Td> 13--5 </Td> <Td> 2nd </Td> <Td> NCAA Elite Eight </Td> </Tr> <Tr> <Td_colspan="2"> Mike Krzyzewski: </Td> <Td> 1027--279 </Td> <Td> 412--171 </Td> <Td_colspan="5"> </Td> </Tr> <Tr> <Td_colspan="2"> Total: </Td> <Td> 1027--279 </Td> <Td_colspan="7"> </Td> </Tr> <Tr> <Td_colspan="9"> <P> National champion Postseason invitational champion Conference regular season champion Conference regular season and conference tournament champion Division regular season champion Division regular season and conference tournament champion Conference tournament champion </P> </Td> </Tr> </Table> <Tr> <Th> Season </Th> <Th> Coach </Th> <Th> Overall </Th> <Th> Conference </Th> <Th> Standing </Th> <Th> Postseason </Th> </Tr>

When did duke win the national championship in basketball