<Tr> <Td> 1991--92 </Td> <Td> UEFA Cup </Td> <Td> First round </Td> <Td> Germinal Ekeren </Td> <Td> 2--0 </Td> <Td> 1--1 </Td> <Td> 3--1 </Td> </Tr> <Tr> <Td> Second round </Td> <Td> Neuchâtel Xamax </Td> <Td> 1--0 </Td> <Td> 1--5 </Td> <Td> 2--5 </Td> </Tr> <Tr> <Td> 1992--93 </Td> <Td> UEFA Cup </Td> <Td> First round </Td> <Td> Cologne </Td> <Td> 3--0 </Td> <Td> 0--2 </Td> <Td> 3--2 </Td> </Tr> <Tr> <Td> Second round </Td> <Td> Borussia Dortmund </Td> <Td> 0--1 </Td> <Td> 1--2 </Td> <Td> 1--3 </Td> </Tr>

How many european finals have celtic been in