Question: how many 6 nations grand slams have wales won
Answer: Nation Grand Slams Grand Slam winning seasons England 13 1913 , 1914 , 1921 , 1923 , 1924 , 1928 , 1957 , 1980 , 1991 , 1992 , 1995 , 2003 , 2016 Wales 11 1908 * , 1909 * , 1911 , 1950 , 1952 , 1971 , 1976 , 1978 , 2005 , 2008 , 2012 France 9 1968 , 1977 , 1981 , 1987 , 1997 , 1998 , 2002 , 2004 , 2010 Ireland 1948 , 2009 , 2018 Scotland 1925 , 1984 , 1990 Italy 0