group	educ	Y
bwt	grad0	14
bwt	grad0	20
bwt	grad0	22
bwt	grad0	13
bwt	grad1	11
bwt	grad1	11
bwt	grad1	16
bwt	grad1	12
bwt	grad0	13
bwt	grad0	18
bwt	grad0	13
bwt	grad0	14
bwt	grad1	12
bwt	grad1	13
bwt	grad1	17
bwt	grad1	13
bw0	grad0	25
bw0	grad0	19
bw0	grad0	21
bw0	grad0	20
bw0	grad1	18
bw0	grad1	16
bw0	grad1	13
bw0	grad1	21
bw0	grad0	20
bw0	grad0	14
bw0	grad0	25
bw0	grad0	18
bw0	grad1	17
bw0	grad1	10
bw0	grad1	16
bw0	grad1	21
normal	grad0	18
normal	grad0	14
normal	grad0	18
normal	grad0	20
normal	grad1	16
normal	grad1	20
normal	grad1	12
normal	grad1	14
normal	grad0	12
normal	grad0	14
normal	grad0	17
normal	grad0	17
normal	grad1	18
normal	grad1	20
normal	grad1	12
normal	grad1	13