what are all of the levels
2001/02, 2002/03, 2003/04, 2004/05, 2005/06, 2006/07, 2007/08, 2008/09, 2009/10, 2010/11, 2011/12, 2012/13, 2013/14
which years were level 6 seasons?
2012/13, 2013/14
which was the only other season aside from 2012/13 to be a level 6 season?
2013/14