<Table> <Tr> <Th colspan="2"> Season </Th> <Th colspan="2"> Episodes </Th> <Th colspan="2"> Originally aired </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> </Tr> <Tr> <Td> </Td> <Td colspan="3"> Pilot </Td> <Td colspan="2"> 1990 ( 1990 ) </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 13 </Td> <Td colspan="1"> August 11 , 1991 ( 1991 - 08 - 11 ) </Td> <Td> May 24 , 1992 ( 1992 - 05 - 24 ) </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 26 </Td> <Td colspan="1"> September 6 , 1992 ( 1992 - 09 - 06 ) </Td> <Td> May 9 , 1993 ( 1993 - 05 - 09 ) </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 26 </Td> <Td colspan="1"> September 26 , 1993 ( 1993 - 09 - 26 ) </Td> <Td> April 13 , 1995 ( 1995 - 04 - 13 ) </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 17 </Td> <Td colspan="1"> December 4 , 1996 ( 1996 - 12 - 04 ) </Td> <Td> November 10 , 1998 ( 1998 - 11 - 10 ) </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> 5 </Td> <Td colspan="2"> 12 </Td> <Td colspan="1"> August 15 , 1998 ( 1998 - 08 - 15 ) </Td> <Td> September 21 , 1998 ( 1998 - 09 - 21 ) </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> 6 </Td> <Td colspan="2"> 36 </Td> <Td colspan="1"> January 18 , 1999 ( 1999 - 01 - 18 ) </Td> <Td> July 20 , 2001 ( 2001 - 07 - 20 ) </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> 7 </Td> <Td colspan="2"> 14 </Td> <Td colspan="1"> January 15 , 2001 ( 2001 - 01 - 15 ) </Td> <Td> January 21 , 2002 ( 2002 - 01 - 21 ) </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> 8 </Td> <Td colspan="2"> 14 </Td> <Td colspan="1"> July 21 , 2001 ( 2001 - 07 - 21 ) </Td> <Td> January 10 , 2003 ( 2003 - 01 - 10 ) </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> 9 </Td> <Td colspan="2"> 14 </Td> <Td colspan="1"> September 28 , 2002 ( 2002 - 09 - 28 ) </Td> <Td> August 1 , 2004 ( 2004 - 08 - 01 ) </Td> </Tr> </Table>
how many seasons of the rugrats are there
9