<Tr> <Td> </Td> <Td> Dark Oracle </Td> <Td> Rebecca </Td> <Td> Episode: "It Happened at the Dance" </Td> </Tr> <Tr> <Td> 2005 </Td> <Td> Power Strikers, The The Power Strikers </Td> <Td> Tracey Battle </Td> <Td> TV series </Td> </Tr> <Tr> <Td> 2007--present </Td> <Td> Heartland </Td> <Td> Amy Fleming </Td> <Td> 160 episodes </Td> </Tr> <Tr> <Td> </Td> <Td> Heartland Christmas, AA Heartland Christmas </Td> <Td> Amy Fleming </Td> <Td> TV Movie </Td> </Tr>

How old is amy in season 6 of heartland