<Tr> <Td> 2000 </Td> <Td> AP, Coaches, BCS, Berryman, Billingsley, DeVold, Dunkel, Eck, FACT, FB News, FW, Massey, Matthews, National Championship Foundation, NFF, Sagarin, Sagarin (ELO - Chess), Seattle Times, Sporting News, USA / ESPN </Td> <Td> Bob Stoops </Td> <Td> 13--0 </Td> </Tr> <Tr> <Td> 2003 </Td> <Td> Berryman </Td> <Td> Bob Stoops </Td> <Td> 12--2 </Td> </Tr> <Table> <Tr> <Th> Conference </Th> <Th> Years </Th> <Th> Championships won (by number) </Th> </Tr> <Tr> <Td> Independent </Td> <Td> 1895--1913 </Td> <Td> None </Td> </Tr> <Tr> <Td> Oklahoma Intercollegiate Conference </Td> <Td> 1914--1919 </Td> <Td> None </Td> </Tr> <Tr> <Td> Southwest Conference </Td> <Td> 1915--1919 </Td> <Td> </Td> </Tr> <Tr> <Td> Missouri Valley Intercollegiate Athletic Association </Td> <Td> 1920--1927 </Td> <Td> </Td> </Tr> <Tr> <Td> Big Six Conference * </Td> <Td> 1928--1995 </Td> <Td> 5 </Td> </Tr> <Tr> <Td> Big Seven Conference * </Td> <Td> 10 </Td> </Tr> <Tr> <Td> Big Eight Conference * </Td> <Td> 18 </Td> </Tr> <Tr> <Td> Big 12 Conference </Td> <Td> 1996--present </Td> <Td> 11 </Td> </Tr> <Tr> <Td_colspan="3"> * Prior to 1964 when the Big Eight legally assumed the name Big Eight Conference the conference was informally known as the Big Six and Big Seven . </Td> </Tr> </Table> <Tr> <Th> Conference </Th> <Th> Years </Th> <Th> Championships won (by number) </Th> </Tr>

How many big 12 championships does ou have