<P> Prior to 2000, each team played four matches, two at home and two away from home . Following the inclusion of Italy in 2000, each team plays five matches, two at home and three away in one year, and the opposite in the following season . When Wales won the Grand Slam in 2005, it was the first time that the feat had been achieved by a team that had played more matches away than at home . This was repeated by Ireland in 2009 and by England in 2016 . </P> <P> The 2017 Six Nations Championship will use bonus points on a trial basis . A team that wins the Grand Slam will get three bonus points . This will eliminate the possibility of a Grand Slam winner losing the championship on bonus points . </P> <Table> <Tr> <Th> Nation </Th> <Th> Grand Slams </Th> <Th> Grand Slam winning seasons </Th> </Tr> <Tr> <Td> England </Td> <Td> 13 </Td> <Td> 1913, 1914, 1921, 1923, 1924, 1928, 1957, 1980, 1991, 1992, 1995, 2003, 2016 </Td> </Tr> <Tr> <Td> Wales </Td> <Td> 11 </Td> <Td> 1908 *, 1909 *, 1911, 1950, 1952, 1971, 1976, 1978, 2005, 2008, 2012 </Td> </Tr> <Tr> <Td> France </Td> <Td> 9 </Td> <Td> 1968, 1977, 1981, 1987, 1997, 1998, 2002, 2004, 2010 </Td> </Tr> <Tr> <Td> Ireland </Td> <Td> </Td> <Td> 1948, 2009, 2018 </Td> </Tr> <Tr> <Td> Scotland </Td> <Td> </Td> <Td> 1925, 1984, 1990 </Td> </Tr> <Tr> <Td> Italy </Td> <Td> 0 </Td> <Td> </Td> </Tr> </Table> <Tr> <Th> Nation </Th> <Th> Grand Slams </Th> <Th> Grand Slam winning seasons </Th> </Tr>

When did ireland rugby last win the grand slam