A	B	A_LEVEL	B_LEVEL	PERCENT
10	20	1	1	32
10	20	1	1	35
40	20	3	1	44
40	20	3	1	47
10	50	1	3	51
10	50	1	3	53
40	50	3	3	68
40	50	3	3	72
25	35	2	2	48
25	35	2	2	53