<Tr> <Th> 248 </Th> <Td> 7 </Td> <Td> "Rock Never Dies" </Td> <Td> Eduardo Sánchez </Td> <Td> Robert Berens </Td> <Td> December 1, 2016 (2016 - 12 - 01) </Td> <Td> T13. 19957 </Td> <Td> 1.80 </Td> </Tr> <Tr> <Th> 249 </Th> <Td> 8 </Td> <Td> "LOTUS" </Td> <Td> Phil Sgriccia </Td> <Td> Eugenie Ross - Leming & Brad Buckner </Td> <Td> December 8, 2016 (2016 - 12 - 08) </Td> <Td> T13. 19958 </Td> <Td> 1.73 </Td> </Tr> <Tr> <Th> 250 </Th> <Td> 9 </Td> <Td> "First Blood" </Td> <Td> Robert Singer </Td> <Td> Andrew Dabb </Td> <Td> January 26, 2017 (2017 - 01 - 26) </Td> <Td> T13. 19959 </Td> <Td> 1.72 </Td> </Tr> <Tr> <Th> 251 </Th> <Td> 10 </Td> <Td> "Lily Sunder Has Some Regrets" </Td> <Td> Thomas J. Wright </Td> <Td> Steve Yockey </Td> <Td> February 2, 2017 (2017 - 02 - 02) </Td> <Td> T13. 19960 </Td> <Td> 1.73 </Td> </Tr>

How many episodes are in each season of supernatural