year #schools 2008 1778 2009 1879 2010 2048 2011 1972 2012 2103 2013 2253 According to the spread sheet, this is the numbers per year of schools that off

year #schools 2008 1778 2009 1879 2010 2048 2011 1972 2012 2103 2013 2253 According to the spread sheet, this is the numbers per year of schools that offered it nationally. (5A - 12B on Sheet1)