<Tr> <Td> 2 (1966) </Td> <Td> 6.9 </Td> <Td> 10 / 13 </Td> </Tr> <Tr> <Td> 3 (1967) </Td> <Td> 8.7 </Td> <Td> 10 / 13 </Td> </Tr> <Tr> <Td> 4 (1968) </Td> <Td> 9.3 </Td> <Td> 5 / 14 </Td> </Tr> <Tr> <Td> 5 (1969) </Td> <Td> 8.8 </Td> <Td> 7 / 19 </Td> </Tr>

How many episodes in a season of days of our lives