Grammar
 

1	xena	31/10/08	92/100
2	xena	30/10/08	90/100
3	shorty	03/11/08	89/100
4	xena	10/11/08	88/100
5	shorty	03/11/08	88/100
6	shorty	24/05/09	88/100
7	xena	24/10/08	82/100
8	rogue	05/09/09	82/100
9	xena	30/10/08	82/100
10	shorty	02/07/09	81/100

 The average is : 86.20%