my @data = ( 
	["1st","2nd","3rd","4th","5th","6th","7th", "8th", "9th"],
	[    3,    7,    8,    2,    4,  8.5,    2,     5,     9],
	[    4,    2,    5,    6,    3,  2.5,    3,     3,     4],
	[    7,    3,    2,    8,  8.5,    2,    9,     4,     5],
);