<Tr> <Th> Catholicism </Th> <Td> 81% </Td> <Td> 67% </Td> <Td> 51% </Td> <Td> 42% </Td> <Td> - </Td> </Tr> <Tr> <Th> Protestantism </Th> <Td> 1% </Td> <Td> 2% </Td> <Td> 3% </Td> <Td> 2% </Td> <Td> - </Td> </Tr> <Tr> <Th> Other and unaffiliated Christians </Th> <Td> - </Td> <Td> - </Td> <Td> 5% </Td> <Td> - </Td> <Td> - </Td> </Tr> <Tr> <Th> Orthodox Christianity </Th> <Td> - </Td> <Td> - </Td> <Td> - </Td> <Td> 1% </Td> <Td> - </Td> </Tr>

Which one of the following is true of religion in 17th century europe