<Table> WNBA expansion and contraction <Tr> <Th> Season (s) </Th> <Th> #Teams </Th> </Tr> <Tr> <Td> 1997 </Td> <Td> 8 </Td> </Tr> <Tr> <Td> 1998 </Td> <Td> 10 </Td> </Tr> <Tr> <Td> 1999 </Td> <Td> 12 </Td> </Tr> <Tr> <Td> 2000--2002 </Td> <Td> 16 </Td> </Tr> <Tr> <Td> 2003 </Td> <Td> 14 </Td> </Tr> <Tr> <Td> 2004--2005 </Td> <Td> 13 </Td> </Tr> <Tr> <Td> 2006 </Td> <Td> 14 </Td> </Tr> <Tr> <Td> 2007 </Td> <Td> 13 </Td> </Tr> <Tr> <Td> 2008 </Td> <Td> 14 </Td> </Tr> <Tr> <Td> 2009 </Td> <Td> 13 </Td> </Tr> <Tr> <Td> 2010--present </Td> <Td> 12 </Td> </Tr> </Table> <Tr> <Th> Season (s) </Th> <Th> #Teams </Th> </Tr> <Tr> <Td> 1997 </Td> <Td> 8 </Td> </Tr> <Tr> <Td> 1998 </Td> <Td> 10 </Td> </Tr>

How many quarters are in an wnba game